diff --git a/plugins/3MFReader/WorkspaceDialog.qml b/plugins/3MFReader/WorkspaceDialog.qml
index 705fe2afe8..f6d60be46b 100644
--- a/plugins/3MFReader/WorkspaceDialog.qml
+++ b/plugins/3MFReader/WorkspaceDialog.qml
@@ -21,7 +21,6 @@ UM.Dialog
 
     backgroundColor: UM.Theme.getColor("main_background")
     margin: UM.Theme.getSize("default_margin").width
-    property int comboboxHeight: UM.Theme.getSize("default_margin").height
 
     Flickable
     {
diff --git a/plugins/3MFReader/WorkspaceSection.qml b/plugins/3MFReader/WorkspaceSection.qml
index 03cf18ccdb..572018dea9 100644
--- a/plugins/3MFReader/WorkspaceSection.qml
+++ b/plugins/3MFReader/WorkspaceSection.qml
@@ -31,7 +31,7 @@ Item
     {
         id: comboboxTooltip
         width: (parent.width / 3) | 0
-        height: visible ? UM.Theme.getSize("default_margin").heightcomboboxHeight : 0
+        height: visible ? UM.Theme.getSize("default_margin").height : 0
         anchors.top: parent.top
         anchors.right: parent.right
         visible: combobox.visible