diff --git a/src/plugins/qmljstools/qmljsmodelmanager.cpp b/src/plugins/qmljstools/qmljsmodelmanager.cpp
index e8b1f99501d..87c2ba1b806 100644
--- a/src/plugins/qmljstools/qmljsmodelmanager.cpp
+++ b/src/plugins/qmljstools/qmljsmodelmanager.cpp
@@ -349,8 +349,9 @@ void ModelManager::updateProjectInfo(const ProjectInfo &pinfo)
     }
     updateSourceFiles(newFiles, false);
 
-    // dump builtin types if the shipped definitions are probably outdated
-    if (QtSupport::QtVersionNumber(pinfo.qtVersionString) > QtSupport::QtVersionNumber(4, 7, 3))
+    // dump builtin types if the shipped definitions are probably outdated and the
+    // Qt version ships qmlplugindump
+    if (QtSupport::QtVersionNumber(pinfo.qtVersionString) >= QtSupport::QtVersionNumber(4, 8, 0))
         m_pluginDumper->loadBuiltinTypes(pinfo);
 
     emit projectInfoUpdated(pinfo);