diff --git a/src/plugins/qmldesigner/components/integration/designdocument.cpp b/src/plugins/qmldesigner/components/integration/designdocument.cpp
index b4a1bdabdbb..d4fd3b0147f 100644
--- a/src/plugins/qmldesigner/components/integration/designdocument.cpp
+++ b/src/plugins/qmldesigner/components/integration/designdocument.cpp
@@ -552,6 +552,16 @@ void DesignDocument::setEditor(Core::IEditor *editor)
 {
     m_textEditor = editor;
     // if the user closed the file explicit we do not want to do anything with it anymore
+
+
+    connect(Core::EditorManager::instance(), &Core::EditorManager::aboutToSave,
+            this, [this](Core::IDocument *document) {
+        if (m_textEditor && m_textEditor->document() == document) {
+            if (m_documentModel && m_documentModel->rewriterView())
+                m_documentModel->rewriterView()->writeAuxiliaryData();
+        }
+    });
+
     connect(Core::EditorManager::instance(), &Core::EditorManager::editorAboutToClose,
             this, [this](Core::IEditor *editor) {
         if (m_textEditor.data() == editor)