diff --git a/src/network/bearer/qnetworksession.cpp b/src/network/bearer/qnetworksession.cpp
index 6f83fd25ca6..1b939bab01e 100644
--- a/src/network/bearer/qnetworksession.cpp
+++ b/src/network/bearer/qnetworksession.cpp
@@ -42,6 +42,11 @@
 
 #include "qnetworkconfigmanager_p.h"
 
+// for QNetworkSession::interface
+#ifdef interface
+#  undef interface
+#endif
+
 #ifndef QT_NO_BEARERMANAGEMENT
 
 QT_BEGIN_NAMESPACE