diff --git a/concurrentmap.h b/concurrentmap.h
index 36fdddd33..9dd16f343 100644
--- a/concurrentmap.h
+++ b/concurrentmap.h
@@ -3,6 +3,7 @@
 
 #include <QMap>
 #include <QMutex>
+
 #include <functional>
 #include <unordered_map>