diff --git a/src/runtime/action/index.ts b/src/runtime/action/index.ts
index 3292508505..97e7ca3da0 100644
--- a/src/runtime/action/index.ts
+++ b/src/runtime/action/index.ts
@@ -1,5 +1,5 @@
 export interface ActionReturn<Parameters = any> {
-	update?: (parameters: Parameters) => void;
+	update?: (parameters?: Parameters) => void;
 	destroy?: () => void;
 }