diff --git a/src/_zkapauthorizer/tests/test_model.py b/src/_zkapauthorizer/tests/test_model.py
index d758e1ffa2c81f4d0d7f5da841f6b58b7a8c7ad8..491bf8401b09a00d4e9eb2bbec753ee8e8e44854 100644
--- a/src/_zkapauthorizer/tests/test_model.py
+++ b/src/_zkapauthorizer/tests/test_model.py
@@ -567,7 +567,6 @@ class UnblindedTokenStateMachine(RuleBasedStateMachine):
         ))
 
 
-
 def random_slice(taken_from, random, data):
     """
     Divide ``taken_from`` into two pieces with elements randomly assigned to