diff --git a/github-electron/github-electron-main-tests.ts b/github-electron/github-electron-main-tests.ts
index 5d3060e4bb..f3abc40b90 100644
--- a/github-electron/github-electron-main-tests.ts
+++ b/github-electron/github-electron-main-tests.ts
@@ -106,6 +106,10 @@ app.on('ready', () => {
 
 	mainWindow.printToPDF({}, (err, data) => {});
 	mainWindow.webContents.printToPDF({}, (err, data) => {});
+
+	mainWindow.webContents.executeJavaScript('return true;');
+	mainWindow.webContents.executeJavaScript('return true;', true);
+	mainWindow.webContents.executeJavaScript('return true;', true, (result: boolean) => console.log(result));
 });
 
 // Locale
diff --git a/github-electron/github-electron.d.ts b/github-electron/github-electron.d.ts
index 6d4620f432..38f847a852 100644
--- a/github-electron/github-electron.d.ts
+++ b/github-electron/github-electron.d.ts
@@ -636,7 +636,7 @@ declare module Electron {
 		 * Evaluates code in page.
 		 * @param code Code to evaluate.
 		 */
-		executeJavaScript(code: string): void;
+		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): void;
 		/**
 		 * Executes Edit -> Undo command in page.
 		 */
@@ -1592,7 +1592,7 @@ declare module Electron {
  		 * invoked by a gesture from the user. Setting `userGesture` to `true` will remove
  		 * this limitation.
 		 */
-		executeJavaScript(code: string, userGesture?: boolean): void;
+		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): void;
 	}
 
 	// Type definitions for main process