diff --git a/types/react-grid-layout/index.d.ts b/types/react-grid-layout/index.d.ts
index bc218d3333..4a60afa1ce 100644
--- a/types/react-grid-layout/index.d.ts
+++ b/types/react-grid-layout/index.d.ts
@@ -238,7 +238,7 @@ declare namespace ReactGridLayout {
         /**
          * Calls when some element has been dropped
          */
-        onDrop?(elemParams: { x: number, y: number, e: Event }): void;
+        onDrop?(elemParams: { x: number, y: number, w: number, h: number, e: Event }): void;
     }
 
     interface ReactGridLayoutProps extends CoreProps {