diff --git a/src/plugins/qmldesigner/components/formeditor/formeditorview.cpp b/src/plugins/qmldesigner/components/formeditor/formeditorview.cpp
index fc37d0b99b6..e4ee007bf7c 100644
--- a/src/plugins/qmldesigner/components/formeditor/formeditorview.cpp
+++ b/src/plugins/qmldesigner/components/formeditor/formeditorview.cpp
@@ -301,7 +301,7 @@ void FormEditorView::selectedNodesChanged(const QList<ModelNode> &selectedNodeLi
     m_scene->update();
 }
 
-void FormEditorView::documentMessagesChanged(const QList<DocumentMessage> &errors, const QList<DocumentMessage> &warnings)
+void FormEditorView::documentMessagesChanged(const QList<DocumentMessage> &errors, const QList<DocumentMessage> &)
 {
     if (!errors.isEmpty())
         formEditorWidget()->showErrorMessageBox(errors);