diff --git a/GameScreen.java b/GameScreen.java
index d678d4a..0ca6fe0 100644
--- a/GameScreen.java
+++ b/GameScreen.java
@@ -46,7 +46,7 @@ class GameScreen
     public void draw(Turtle turtle, double elapsed)
     {
         TurtleWelt.globaleWelt.bildschirmEinfaerben(255, 255, 255);
-        for (var d : _drawables)
+        for (Drawable d : _drawables)
         {
             d.draw(turtle, elapsed);
         }
diff --git a/build/FlappyTurtle.jar b/build/FlappyTurtle.jar
index 80d3a99..76a3f91 100644
Binary files a/build/FlappyTurtle.jar and b/build/FlappyTurtle.jar differ