diff --git a/src/gui/symbology-ng/qgsrendererv2propertiesdialog.cpp b/src/gui/symbology-ng/qgsrendererv2propertiesdialog.cpp
index fa1c9221a6d..4ad6e2034c1 100644
--- a/src/gui/symbology-ng/qgsrendererv2propertiesdialog.cpp
+++ b/src/gui/symbology-ng/qgsrendererv2propertiesdialog.cpp
@@ -282,7 +282,7 @@ void QgsRendererV2PropertiesDialog::changeOrderBy( const QgsFeatureRequest::Orde
 {
   mOrderBy = orderBy;
   lineEditOrderBy->setText( mOrderBy.dump() );
-  checkboxEnableOrderBy->setChecked( orderBy.isEmpty() );
+  checkboxEnableOrderBy->setChecked( !orderBy.isEmpty() );
 }