diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index 958c1b26..2e4ce1e7 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -113,7 +113,7 @@ try:
     from View.Doc.Window import DocWindow
     _doc = "internal"
 except Exception as e:
-    print("Handle exception: {e}")
+    print(f"Handle exception: {e}")
     _doc = "external"
 
 from Model.Study import Study