diff --git a/src/compile/render-dom/wrappers/Slot.ts b/src/compile/render-dom/wrappers/Slot.ts
index 69fa570d7d..07ee48ab73 100644
--- a/src/compile/render-dom/wrappers/Slot.ts
+++ b/src/compile/render-dom/wrappers/Slot.ts
@@ -40,9 +40,10 @@ export default class SlotWrapper extends Wrapper {
 
 		this.node.values.forEach(attribute => {
 			add_to_set(this.dependencies, attribute.dependencies);
-			block.add_dependencies(attribute.dependencies);
 		});
 
+		block.add_dependencies(this.dependencies);
+
 		// we have to do this, just in case
 		block.add_intro();
 		block.add_outro();