diff --git a/src/runtime/internal/dev.ts b/src/runtime/internal/dev.ts
index f3d1fae4b9..5c49c5c253 100644
--- a/src/runtime/internal/dev.ts
+++ b/src/runtime/internal/dev.ts
@@ -339,6 +339,10 @@ export type ComponentEvent<Component extends SvelteComponent, Name extends strin
 	? never extends Events[Name] ? CustomEvent<unknown> : Events[Name]
 	: never;
 
+export type ComponentSlots<Component extends SvelteComponent> = Component extends SvelteComponentTyped<any, any, infer Slots>
+	? {} extends Slots ? never : Slots
+	: never;
+  
 export function loop_guard(timeout) {
 	const start = Date.now();
 	return () => {