diff --git a/packages/svelte/src/compiler/phases/3-transform/client/transform-template/index.js b/packages/svelte/src/compiler/phases/3-transform/client/transform-template/index.js
index a2854abad2..7cda7a4759 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/transform-template/index.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/transform-template/index.js
@@ -1,7 +1,7 @@
 /**
  * @import { TemplateOperations } from "../types.js"
  */
-import { template_to_string } from './to-string';
+import { template_to_string } from './to-string.js';
 
 /**
  * @param {TemplateOperations} items