diff --git a/src/libs/qmuparser/qmuparsertest.cpp b/src/libs/qmuparser/qmuparsertest.cpp
index faa4a48ad..9eedbb18a 100644
--- a/src/libs/qmuparser/qmuparsertest.cpp
+++ b/src/libs/qmuparser/qmuparsertest.cpp
@@ -25,6 +25,7 @@
 #include <QString>
 #include <QDebug>
 #include "qmuparsererror.h"
+#include <QtCore/qmath.h>
 
 using namespace std;