diff --git a/src/compiler/compile/nodes/shared/Expression.ts b/src/compiler/compile/nodes/shared/Expression.ts
index 6cbab30b44..b34d139ae8 100644
--- a/src/compiler/compile/nodes/shared/Expression.ts
+++ b/src/compiler/compile/nodes/shared/Expression.ts
@@ -62,7 +62,7 @@ export default class Expression {
 
 		// discover dependencies, but don't change the code yet
 		walk(info, {
-			enter(node: Node, parent: any, key: string) {
+			enter(node: any, parent: any, key: string) {
 				// don't manipulate shorthand props twice
 				if (key === 'key' && parent.shorthand) return;
 				// don't manipulate `import.meta`, `new.target`
@@ -166,13 +166,13 @@ export default class Expression {
 
 							if (declaration) {
 								if (declaration.kind === 'const' && !deep) {
-									component.error(node as any, {
+									component.error(node, {
 										code: 'assignment-to-const',
 										message: 'You are assigning to a const'
 									});
 								}
 							} else if (variable && variable.writable === false && !deep) {
-								component.error(node as any, {
+								component.error(node, {
 									code: 'assignment-to-const',
 									message: 'You are assigning to a const'
 								});
diff --git a/test/js/samples/unchanged-expression/expected.js b/test/js/samples/unchanged-expression/expected.js
index 48ae8131ff..8ede703cec 100644
--- a/test/js/samples/unchanged-expression/expected.js
+++ b/test/js/samples/unchanged-expression/expected.js
@@ -73,7 +73,7 @@ let world1 = 'world';
 let world2 = 'world';
 
 function instance($$self, $$props, $$invalidate) {
-	const world3 = 'world';
+	let world3 = 'world';
 
 	function foo() {
 		$$invalidate(0, world3 = 'svelte');
diff --git a/test/js/samples/unchanged-expression/input.svelte b/test/js/samples/unchanged-expression/input.svelte
index 057201358c..35fa8b65d3 100644
--- a/test/js/samples/unchanged-expression/input.svelte
+++ b/test/js/samples/unchanged-expression/input.svelte
@@ -1,7 +1,7 @@
 <script>
   let world1 = 'world';
   let world2 = 'world';
-  const world3 = 'world';
+  let world3 = 'world';
   function foo() {
     world3 = 'svelte';
   }