diff --git a/resources/qml/Dialogs/AboutDialog.qml b/resources/qml/Dialogs/AboutDialog.qml
index d917656c9f..d08b9658db 100644
--- a/resources/qml/Dialogs/AboutDialog.qml
+++ b/resources/qml/Dialogs/AboutDialog.qml
@@ -165,12 +165,11 @@ UM.Dialog
         }
     }
 
-    rightButtons: Cura.SecondaryButton
+    rightButtons: Cura.TertiaryButton
     {
         //: Close about dialog button
         id: closeButton
         text: catalog.i18nc("@action:button", "Close")
-
-        onClicked: base.visible = false;
+        onClicked: reject()
     }
 }