diff --git a/src/UI/MainWindow.hh b/src/UI/MainWindow.hh
index 17386985d089c75caaef8345ebd1984cd29f241b..05d2292d0255aabb1c079f3e21cf3f6bcc636482 100644
--- a/src/UI/MainWindow.hh
+++ b/src/UI/MainWindow.hh
@@ -23,7 +23,7 @@ class MainWindow final : public QMainWindow {
     QTabWidget *documents{ nullptr };
     QMenu *viewMenu{ nullptr };
 
-    QMutex aboutWindowMutex{ QMutex::NonRecursive };
+    QMutex aboutWindowMutex;
     AboutWindow *aboutWindow{ nullptr };
 
 public: