diff --git a/src/generators/dom/Block.ts b/src/generators/dom/Block.ts
index c0fb7a2c4c..91a92bbe07 100644
--- a/src/generators/dom/Block.ts
+++ b/src/generators/dom/Block.ts
@@ -251,7 +251,7 @@ export default class Block {
 
 		if (!this.builders.hydrate.isEmpty()) {
 			properties.addBlock(deindent`
-				hydrate: function(nodes) {
+				hydrate: function() {
 					${this.builders.hydrate}
 				},
 			`);
diff --git a/test/js/samples/collapses-text-around-comments/expected-bundle.js b/test/js/samples/collapses-text-around-comments/expected-bundle.js
index f144e884aa..dcc47255b3 100644
--- a/test/js/samples/collapses-text-around-comments/expected-bundle.js
+++ b/test/js/samples/collapses-text-around-comments/expected-bundle.js
@@ -220,7 +220,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			encapsulateStyles(p);
 		},
 
diff --git a/test/js/samples/collapses-text-around-comments/expected.js b/test/js/samples/collapses-text-around-comments/expected.js
index 9e85f05595..caa1bc886b 100644
--- a/test/js/samples/collapses-text-around-comments/expected.js
+++ b/test/js/samples/collapses-text-around-comments/expected.js
@@ -31,7 +31,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			encapsulateStyles(p);
 		},
 
diff --git a/test/js/samples/css-media-query/expected-bundle.js b/test/js/samples/css-media-query/expected-bundle.js
index 8cc7e465d1..8268700417 100644
--- a/test/js/samples/css-media-query/expected-bundle.js
+++ b/test/js/samples/css-media-query/expected-bundle.js
@@ -207,7 +207,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			encapsulateStyles(div);
 		},
 
diff --git a/test/js/samples/css-media-query/expected.js b/test/js/samples/css-media-query/expected.js
index 11d1550542..a87dfb878d 100644
--- a/test/js/samples/css-media-query/expected.js
+++ b/test/js/samples/css-media-query/expected.js
@@ -22,7 +22,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			encapsulateStyles(div);
 		},
 
diff --git a/test/js/samples/each-block-changed-check/expected-bundle.js b/test/js/samples/each-block-changed-check/expected-bundle.js
index 5f73756b77..1604c03c6a 100644
--- a/test/js/samples/each-block-changed-check/expected-bundle.js
+++ b/test/js/samples/each-block-changed-check/expected-bundle.js
@@ -293,7 +293,7 @@ function create_each_block(state, each_block_value, comment, i, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			div.className = "comment";
 			span.className = "meta";
 		},
diff --git a/test/js/samples/each-block-changed-check/expected.js b/test/js/samples/each-block-changed-check/expected.js
index d69a80fcaf..e494471a5f 100644
--- a/test/js/samples/each-block-changed-check/expected.js
+++ b/test/js/samples/each-block-changed-check/expected.js
@@ -95,7 +95,7 @@ function create_each_block(state, each_block_value, comment, i, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			div.className = "comment";
 			span.className = "meta";
 		},
diff --git a/test/js/samples/event-handlers-custom/expected-bundle.js b/test/js/samples/event-handlers-custom/expected-bundle.js
index f779357293..028e471852 100644
--- a/test/js/samples/event-handlers-custom/expected-bundle.js
+++ b/test/js/samples/event-handlers-custom/expected-bundle.js
@@ -212,7 +212,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			foo_handler = template.events.foo.call(component, button, function(event) {
 				var state = component.get();
 				component.foo( state.bar );
diff --git a/test/js/samples/event-handlers-custom/expected.js b/test/js/samples/event-handlers-custom/expected.js
index eb6069e1d4..1891835aa1 100644
--- a/test/js/samples/event-handlers-custom/expected.js
+++ b/test/js/samples/event-handlers-custom/expected.js
@@ -27,7 +27,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			foo_handler = template.events.foo.call(component, button, function(event) {
 				var state = component.get();
 				component.foo( state.bar );
diff --git a/test/js/samples/inline-style-optimized-multiple/expected-bundle.js b/test/js/samples/inline-style-optimized-multiple/expected-bundle.js
index 15972de8db..3f794ba7ac 100644
--- a/test/js/samples/inline-style-optimized-multiple/expected-bundle.js
+++ b/test/js/samples/inline-style-optimized-multiple/expected-bundle.js
@@ -192,7 +192,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setStyle(div, "color", state.color);
 			setStyle(div, "transform", "translate(" + state.x + "px," + state.y + "px)");
 		},
diff --git a/test/js/samples/inline-style-optimized-multiple/expected.js b/test/js/samples/inline-style-optimized-multiple/expected.js
index e246b76808..45f2a50c2a 100644
--- a/test/js/samples/inline-style-optimized-multiple/expected.js
+++ b/test/js/samples/inline-style-optimized-multiple/expected.js
@@ -11,7 +11,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setStyle(div, "color", state.color);
 			setStyle(div, "transform", "translate(" + state.x + "px," + state.y + "px)");
 		},
diff --git a/test/js/samples/inline-style-optimized-url/expected-bundle.js b/test/js/samples/inline-style-optimized-url/expected-bundle.js
index b9fffb2f15..18205758cc 100644
--- a/test/js/samples/inline-style-optimized-url/expected-bundle.js
+++ b/test/js/samples/inline-style-optimized-url/expected-bundle.js
@@ -192,7 +192,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setStyle(div, "background", "url(data:image/png;base64," + state.data + ")");
 		},
 
diff --git a/test/js/samples/inline-style-optimized-url/expected.js b/test/js/samples/inline-style-optimized-url/expected.js
index e979cefc37..9452de7328 100644
--- a/test/js/samples/inline-style-optimized-url/expected.js
+++ b/test/js/samples/inline-style-optimized-url/expected.js
@@ -11,7 +11,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setStyle(div, "background", "url(data:image/png;base64," + state.data + ")");
 		},
 
diff --git a/test/js/samples/inline-style-optimized/expected-bundle.js b/test/js/samples/inline-style-optimized/expected-bundle.js
index 385aaa0c30..db5b7c8a2c 100644
--- a/test/js/samples/inline-style-optimized/expected-bundle.js
+++ b/test/js/samples/inline-style-optimized/expected-bundle.js
@@ -192,7 +192,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setStyle(div, "color", state.color);
 		},
 
diff --git a/test/js/samples/inline-style-optimized/expected.js b/test/js/samples/inline-style-optimized/expected.js
index 52542ce3ba..bc4dc0eeda 100644
--- a/test/js/samples/inline-style-optimized/expected.js
+++ b/test/js/samples/inline-style-optimized/expected.js
@@ -11,7 +11,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setStyle(div, "color", state.color);
 		},
 
diff --git a/test/js/samples/inline-style-unoptimized/expected-bundle.js b/test/js/samples/inline-style-unoptimized/expected-bundle.js
index f031e6c0e2..98235d2576 100644
--- a/test/js/samples/inline-style-unoptimized/expected-bundle.js
+++ b/test/js/samples/inline-style-unoptimized/expected-bundle.js
@@ -194,7 +194,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			div.style.cssText = state.style;
 			div_1.style.cssText = div_1_style_value = "" + state.key + ": " + state.value;
 		},
diff --git a/test/js/samples/inline-style-unoptimized/expected.js b/test/js/samples/inline-style-unoptimized/expected.js
index 081c497f9e..c15408b3be 100644
--- a/test/js/samples/inline-style-unoptimized/expected.js
+++ b/test/js/samples/inline-style-unoptimized/expected.js
@@ -13,7 +13,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			div.style.cssText = state.style;
 			div_1.style.cssText = div_1_style_value = "" + state.key + ": " + state.value;
 		},
diff --git a/test/js/samples/input-without-blowback-guard/expected-bundle.js b/test/js/samples/input-without-blowback-guard/expected-bundle.js
index 99ce19c0bf..948cd943b1 100644
--- a/test/js/samples/input-without-blowback-guard/expected-bundle.js
+++ b/test/js/samples/input-without-blowback-guard/expected-bundle.js
@@ -200,7 +200,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			input.type = "checkbox";
 			addListener(input, "change", input_change_handler);
 		},
diff --git a/test/js/samples/input-without-blowback-guard/expected.js b/test/js/samples/input-without-blowback-guard/expected.js
index e5f2d4ff21..86e92e2fc4 100644
--- a/test/js/samples/input-without-blowback-guard/expected.js
+++ b/test/js/samples/input-without-blowback-guard/expected.js
@@ -15,7 +15,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			input.type = "checkbox";
 			addListener(input, "change", input_change_handler);
 		},
diff --git a/test/js/samples/legacy-input-type/expected-bundle.js b/test/js/samples/legacy-input-type/expected-bundle.js
index 35a5253a26..036c77f3c8 100644
--- a/test/js/samples/legacy-input-type/expected-bundle.js
+++ b/test/js/samples/legacy-input-type/expected-bundle.js
@@ -194,7 +194,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setInputType(input, "search");
 		},
 
diff --git a/test/js/samples/legacy-input-type/expected.js b/test/js/samples/legacy-input-type/expected.js
index ccd0bc4a5f..9a4d4782cd 100644
--- a/test/js/samples/legacy-input-type/expected.js
+++ b/test/js/samples/legacy-input-type/expected.js
@@ -11,7 +11,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			setInputType(input, "search");
 		},
 
diff --git a/test/js/samples/legacy-quote-class/expected-bundle.js b/test/js/samples/legacy-quote-class/expected-bundle.js
index a3edb24252..552f1c22bc 100644
--- a/test/js/samples/legacy-quote-class/expected-bundle.js
+++ b/test/js/samples/legacy-quote-class/expected-bundle.js
@@ -219,7 +219,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			div.className = "foo";
 		},
 
diff --git a/test/js/samples/legacy-quote-class/expected.js b/test/js/samples/legacy-quote-class/expected.js
index 984e7e7c6d..93121a357a 100644
--- a/test/js/samples/legacy-quote-class/expected.js
+++ b/test/js/samples/legacy-quote-class/expected.js
@@ -19,7 +19,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			div.className = "foo";
 		},
 
diff --git a/test/js/samples/media-bindings/expected-bundle.js b/test/js/samples/media-bindings/expected-bundle.js
index 08e8a09d7c..7ed611bf35 100644
--- a/test/js/samples/media-bindings/expected-bundle.js
+++ b/test/js/samples/media-bindings/expected-bundle.js
@@ -243,7 +243,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			component._root._beforecreate.push(audio_progress_loadedmetadata_handler);
 
 			addListener(audio, "progress", audio_progress_loadedmetadata_handler);
diff --git a/test/js/samples/media-bindings/expected.js b/test/js/samples/media-bindings/expected.js
index 05ab3147c3..5e67ebfb1f 100644
--- a/test/js/samples/media-bindings/expected.js
+++ b/test/js/samples/media-bindings/expected.js
@@ -50,7 +50,7 @@ function create_main_fragment(state, component) {
 			this.hydrate();
 		},
 
-		hydrate: function(nodes) {
+		hydrate: function() {
 			component._root._beforecreate.push(audio_progress_loadedmetadata_handler);
 
 			addListener(audio, "progress", audio_progress_loadedmetadata_handler);