diff --git a/res/layout/test_layout.xml b/res/layout/test_layout.xml
index 818a597..4ca43b6 100644
--- a/res/layout/test_layout.xml
+++ b/res/layout/test_layout.xml
@@ -111,7 +111,7 @@
         android:id="@+id/numPad"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/buttonGetDataString"/>
+        android:layout_below="@+id/buttonService"/>
 
     <Button
         android:id="@+id/buttonCall"