diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index ceb5f8067c..b9462b4710 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -104,6 +104,8 @@
 
 #include <boost/bind.hpp>
 
+#include <sstream>
+
 #ifdef HAVE_SYS_TIME_H
 # include <sys/time.h>
 #endif