diff --git a/src/plugins/qt4projectmanager/qt-maemo/maemotoolchain.cpp b/src/plugins/qt4projectmanager/qt-maemo/maemotoolchain.cpp
index bcf312ae0340483177d78513e375c3f5ee33b715..c3088271b68dc00323f2167d42575792ff65c7a8 100644
--- a/src/plugins/qt4projectmanager/qt-maemo/maemotoolchain.cpp
+++ b/src/plugins/qt4projectmanager/qt-maemo/maemotoolchain.cpp
@@ -31,6 +31,7 @@
 #include "qtversionmanager.h"
 
 #include <QtCore/QDir>
+#include <QtCore/QStringBuilder>
 #include <QtCore/QtDebug>
 
 using namespace ProjectExplorer;