diff --git a/src/litegraph.d.ts b/src/litegraph.d.ts
index 730ced034..5a539f972 100644
--- a/src/litegraph.d.ts
+++ b/src/litegraph.d.ts
@@ -534,8 +534,8 @@ export declare class LGraph {
     removeOutput(name: string): boolean;
     triggerInput(name: string, value: any): void;
     setCallback(name: string, func: (...args: any[]) => any): void;
-    beforeChange(info: LGraphNode): void;
-    afterChange(info: LGraphNode): void;                       
+    beforeChange(info?: LGraphNode): void;
+    afterChange(info?: LGraphNode): void;                       
     connectionChange(node: LGraphNode): void;
     /** returns if the graph is in live mode */
     isLive(): boolean;