diff --git a/ordr3/services.py b/ordr3/services.py
index 236fbaa..c5bc50b 100644
--- a/ordr3/services.py
+++ b/ordr3/services.py
@@ -12,7 +12,7 @@ CONSUMABLE_STATI = {models.OrderStatus.ORDERED, models.OrderStatus.COMPLETED}
 
 
 MSG_SHORT_PASSWORD = events.FlashMessage.warning(
-    f"Your password is quite short.",
+    "Your password is quite short.",
     (
         'Have a look at <a href="https://www.xkcd.com/936/">'
         "this comic strip</a> why longer passwords are better."