Index: texmaker-4.4.1/singleapp/qtlocalpeer.cpp
===================================================================
--- texmaker-4.4.1.orig/singleapp/qtlocalpeer.cpp
+++ texmaker-4.4.1/singleapp/qtlocalpeer.cpp
@@ -41,6 +41,7 @@
 
 #include "qtlocalpeer.h"
 #include <QCoreApplication>
+#include <QDataStream>
 #include <QTime>
 
 #if defined(Q_OS_WIN)
