diff --git a/cfg/qt.cfg b/cfg/qt.cfg
index d1637e4e9..2cf9b9abd 100644
--- a/cfg/qt.cfg
+++ b/cfg/qt.cfg
@@ -5116,6 +5116,7 @@
   <define name="Q_IMPORT_PLUGIN2(a,ClassName)" value=""/>
   <define name="Q_GLOBAL_STATIC(Type,VariableName)" value=""/>
   <define name="Q_GLOBAL_STATIC_WITH_ARGS(Type,VariableName,Arguments)" value=""/>
+  <define name="Q_NAMESPACE_EXPORT" value=""/>
   <define name="Q_DECL_EXPORT" value=""/>
   <define name="Q_DECL_IMPORT" value=""/>
   <define name="QT_DECLARE_DEPRECATED_TR_FUNCTIONS(context)" value="static inline QString trUtf8(const char *sourceText, const char *disambiguation = Q_NULLPTR, int n = -1) { return QCoreApplication::translate(#context, sourceText, disambiguation, n); }"/>