diff --git a/qxmpp-0.7.6/src/src.pro b/qxmpp-0.7.6-patch/src/src.pro
index 954738c..8404c8c 100644
--- a/qxmpp-0.7.6/src/src.pro
+++ b/qxmpp-0.7.6-patch/src/src.pro
@@ -4,7 +4,7 @@ QT -= gui
 
 TEMPLATE = lib
 
-CONFIG += $$QXMPP_LIBRARY_TYPE
+CONFIG += $$QXMPP_LIBRARY_TYPE c++11
 DEFINES += QXMPP_BUILD
 DEFINES += $$QXMPP_INTERNAL_DEFINES
 INCLUDEPATH += $$QXMPP_INCLUDEPATH $$QXMPP_INTERNAL_INCLUDES