diff --git a/wailsjs/runtime/runtime.d.ts b/wailsjs/runtime/runtime.d.ts
index 94778df..4445dac 100644
--- a/wailsjs/runtime/runtime.d.ts
+++ b/wailsjs/runtime/runtime.d.ts
@@ -134,7 +134,7 @@ export function WindowIsFullscreen(): Promise<boolean>;
 
 // [WindowSetSize](https://wails.io/docs/reference/runtime/window#windowsetsize)
 // Sets the width and height of the window.
-export function WindowSetSize(width: number, height: number): Promise<Size>;
+export function WindowSetSize(width: number, height: number): void;
 
 // [WindowGetSize](https://wails.io/docs/reference/runtime/window#windowgetsize)
 // Gets the width and height of the window.