diff --git a/pyomo/contrib/iis/tests/test_mis.py b/pyomo/contrib/iis/tests/test_mis.py
index 452d1b4e773..0561d647310 100644
--- a/pyomo/contrib/iis/tests/test_mis.py
+++ b/pyomo/contrib/iis/tests/test_mis.py
@@ -98,6 +98,5 @@ def _test_mis(solver_name):
         print("PerimssionError allowed for log file during test (Windows)")
 
 
-
 if __name__ == "__main__":
     unittest.main()