diff --git a/resources/qml/ExpandableComponent.qml b/resources/qml/ExpandableComponent.qml
index f58d7b59ff..f48cc685db 100644
--- a/resources/qml/ExpandableComponent.qml
+++ b/resources/qml/ExpandableComponent.qml
@@ -167,7 +167,7 @@ Item
                     verticalCenter: parent.verticalCenter
                     margins: background.padding
                 }
-                source: UM.Theme.getIcon("Pen")
+                source: expanded ? UM.Theme.getIcon("ChevronSingleDown") : UM.Theme.getIcon("ChevronSingleLeft")
                 visible: source != ""
                 width: UM.Theme.getSize("standard_arrow").width
                 height: UM.Theme.getSize("standard_arrow").height