diff --git a/axes/checks.py b/axes/checks.py
index 9fa08a4..a318443 100644
--- a/axes/checks.py
+++ b/axes/checks.py
@@ -44,9 +44,7 @@ class Hints:
     CALLABLE_INVALID = None
     LOCKOUT_PARAMETERS_INVALID = "Add 'ip_address' to AXES_LOCKOUT_PARAMETERS."
     LOCKOUT_TIERS_CONFLICT = "Remove AXES_COOLOFF_TIME when using AXES_LOCKOUT_TIERS."
-    LOCKOUT_TIERS_INVALID = (
-        "Use: AXES_LOCKOUT_TIERS = [LockoutTier(failures=3, cooloff=timedelta(minutes=15)), ...]"
-    )
+    LOCKOUT_TIERS_INVALID = "Use: AXES_LOCKOUT_TIERS = [LockoutTier(failures=3, cooloff=timedelta(minutes=15)), ...]"
 
 
 class Codes: