diff --git a/src/corelib/serialization/qxmlstream.g b/src/corelib/serialization/qxmlstream.g
index 52ace7c307..4d08f9aec3 100644
--- a/src/corelib/serialization/qxmlstream.g
+++ b/src/corelib/serialization/qxmlstream.g
@@ -219,6 +219,8 @@
 #ifndef QXMLSTREAMPARSER_P_H
 #define QXMLSTREAMPARSER_P_H
 
+QT_BEGIN_NAMESPACE
+
 #ifndef QT_NO_XMLSTREAMREADER
 
 bool QXmlStreamReaderPrivate::parse()
@@ -1551,6 +1553,8 @@ nmtoken ::= COLON;
 
 #endif
 
+QT_END_NAMESPACE
+
 #endif
 
 ./