diff --git a/src/QmlControls/ParameterEditorDialog.qml b/src/QmlControls/ParameterEditorDialog.qml
index d43190b06e4d696945104cb609801e1ceee656d1..7270ede46c340794621628b03ed6e1adb0f144b8 100644
--- a/src/QmlControls/ParameterEditorDialog.qml
+++ b/src/QmlControls/ParameterEditorDialog.qml
@@ -126,7 +126,8 @@ QGCViewDialog {
 
             QGCComboBox {
                 id:             factCombo
-                width:          valueField.width
+                anchors.left:   parent.left
+                anchors.right:  parent.right
                 visible:        _showCombo
                 model:          fact.enumStrings