diff --git a/packages/svelte/src/internal/client/custom-renderer/index.js b/packages/svelte/src/internal/client/custom-renderer/index.js
index e6ea2e29b5..c7a2d95772 100644
--- a/packages/svelte/src/internal/client/custom-renderer/index.js
+++ b/packages/svelte/src/internal/client/custom-renderer/index.js
@@ -1,5 +1,5 @@
-import { branch, effect_root } from '../reactivity/effects';
-import { push_renderer } from './state';
+import { branch, effect_root } from '../reactivity/effects.js';
+import { push_renderer } from './state.js';
 
 /**
  * @template [TFragment=any]