diff --git a/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp b/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp
index 1a0d3ae9c33..8e9b6844307 100644
--- a/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp
+++ b/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp
@@ -92,7 +92,7 @@ QStringList supportedVersionsList()
 {
     static const QStringList list = {"2.0",  "2.1",  "2.2", "2.3",  "2.4",  "2.5",  "2.6",
                                      "2.7",  "2.8",  "2.9", "2.10", "2.11", "2.12", "2.13",
-                                     "2.14", "2.15", "6.0", "6.1",  "6.2",  "6.3"};
+                                     "2.14", "2.15", "6.0", "6.1",  "6.2",  "6.3",  "6.4"};
     return list;
 }