diff --git a/packages/svelte/src/main/public.d.ts b/packages/svelte/src/main/public.d.ts
index e98a627342..d799204088 100644
--- a/packages/svelte/src/main/public.d.ts
+++ b/packages/svelte/src/main/public.d.ts
@@ -195,7 +195,11 @@ declare const SnippetReturn: unique symbol;
  * You can only call a snippet through the `{@render ...}` tag.
  */
 export interface Snippet<T = void> {
-	(arg: T): typeof SnippetReturn;
+	(
+		arg: T
+	): typeof SnippetReturn & {
+		_: 'functions passed to {@render ...} tags must use the `Snippet` type imported from "svelte"';
+	};
 }
 
 interface DispatchOptions {