diff --git a/src/plugins/qtsupport/baseqtversion.cpp b/src/plugins/qtsupport/baseqtversion.cpp
index 62675294f05..831834cd71a 100644
--- a/src/plugins/qtsupport/baseqtversion.cpp
+++ b/src/plugins/qtsupport/baseqtversion.cpp
@@ -453,8 +453,8 @@ QSet<Id> BaseQtVersion::availableFeatures() const
     if (qtVersion().matches(5, 5))
         return features;
 
-    features |= FeatureSet::versionedFeatures(Constants::FEATURE_QT_QUICK_PREFIX, 2, 6);
-    features |= FeatureSet::versionedFeatures(Constants::FEATURE_QT_QUICK_CONTROLS_PREFIX, 1, 5);
+    features.unite(versionedIds(Constants::FEATURE_QT_QUICK_PREFIX, 2, 6));
+    features.unite(versionedIds(Constants::FEATURE_QT_QUICK_CONTROLS_PREFIX, 1, 5));
 
     if (qtVersion().matches(5, 6))
         return features;