diff --git a/src/plugins/qmldesigner/components/integration/designdocument.cpp b/src/plugins/qmldesigner/components/integration/designdocument.cpp
index 85238278235..26d7712e1d1 100644
--- a/src/plugins/qmldesigner/components/integration/designdocument.cpp
+++ b/src/plugins/qmldesigner/components/integration/designdocument.cpp
@@ -277,7 +277,7 @@ bool DesignDocument::isQtForMCUsProject() const
     if (m_currentTarget)
         return m_currentTarget->additionalData("CustomQtForMCUs").toBool();
 
-    return true;
+    return false;
 }
 
 void DesignDocument::changeToInFileComponentModel(ComponentTextModifier *textModifer)