diff --git a/plugins/PrepareStage/PrepareMenu.qml b/plugins/PrepareStage/PrepareMenu.qml
index a953c2b5d1..81799206a0 100644
--- a/plugins/PrepareStage/PrepareMenu.qml
+++ b/plugins/PrepareStage/PrepareMenu.qml
@@ -101,7 +101,8 @@ Item
                 height: UM.Theme.getSize("button_icon").height
                 color: UM.Theme.getColor("toolbar_button_text")
 
-                sourceSize: UM.Theme.getSize("button_icon")
+                sourceSize.width: width
+                sourceSize.height: height
             }
 
             background: Rectangle