diff --git a/packages/svelte/src/mount.ts b/packages/svelte/src/mount.ts
index ca951767..54d5f826 100644
--- a/packages/svelte/src/mount.ts
+++ b/packages/svelte/src/mount.ts
@@ -15,7 +15,7 @@ function mountFunctionComponent(UserComponent: SvelteComponentConstructor, optio
   // Unlike `new UserComponent()` in Svelte v4, `mount()` in Svelte v5 doesn't
   // call `onMount()` and action functions automatically. So we need to call
   // `flushSync()` to ensure they run.
-  svelte.flushSync()
+  void svelte.tick()
   return () => svelte.unmount(component)
 }