diff --git a/pyomo/contrib/iis/tests/test_mis.py b/pyomo/contrib/iis/tests/test_mis.py
index 39ad9615e3a..adf44a189af 100644
--- a/pyomo/contrib/iis/tests/test_mis.py
+++ b/pyomo/contrib/iis/tests/test_mis.py
@@ -93,7 +93,7 @@ def _test_mis(solver_name):
     _check_output(file_name)
     # logging.getLogger().removeHandler(logging.getLogger().handlers[0])
     logger.removeHandler(logger.handlers[0])
-    
+
     TempfileManager.pop()