1 files changed, 1 insertions, 0 deletions
diff --git a/ui/qt/main.cpp b/ui/qt/main.cpp
index cb1dc3acb3..46533369c6 100644
--- a/ui/qt/main.cpp
+++ b/ui/qt/main.cpp
@@ -528,6 +528,7 @@ int main(int argc, char *argv[])
     int                  status;
 
     //initialize language !
+    create_app_running_mutex();
 
     QString locale = QLocale::system().name();