diff --git a/src/libs/utils/stringutils.h b/src/libs/utils/stringutils.h
index 3214424728c..e6583c8eb3d 100644
--- a/src/libs/utils/stringutils.h
+++ b/src/libs/utils/stringutils.h
@@ -32,6 +32,8 @@
 #include <QList>
 #include <QString>
 
+#include <functional>
+
 QT_BEGIN_NAMESPACE
 class QJsonValue;
 QT_END_NAMESPACE