diff --git a/src/qtsingleapplication/qtlocalpeer.cpp b/src/qtsingleapplication/qtlocalpeer.cpp
index cc7d067e8..47f01205c 100644
--- a/src/qtsingleapplication/qtlocalpeer.cpp
+++ b/src/qtsingleapplication/qtlocalpeer.cpp
@@ -42,6 +42,7 @@
 #include "qtlocalpeer.h"
 #include <QCoreApplication>
 #include <QTime>
+#include <QDataStream>
 
 #if defined(Q_OS_WIN)
 #include <QLibrary>