diff --git a/lime/_backend/html5/HTML5Window.hx b/lime/_backend/html5/HTML5Window.hx
index 4da179f18..1f08e63d0 100644
--- a/lime/_backend/html5/HTML5Window.hx
+++ b/lime/_backend/html5/HTML5Window.hx
@@ -626,5 +626,9 @@ class HTML5Window {
 		
 	}
 	
+	public function alert (count:Int, speed:Int, stopOnForeground:Bool):Void {
+		
+	}
 	
-}
\ No newline at end of file
+	
+}