diff --git a/gridpath/auxiliary/import_export_rules.py b/gridpath/auxiliary/import_export_rules.py
index b7c778a7b..5eebf8384 100644
--- a/gridpath/auxiliary/import_export_rules.py
+++ b/gridpath/auxiliary/import_export_rules.py
@@ -35,14 +35,12 @@ def export_rule_use(instance, quiet):
     return unserved_energy_found
 
 
-def summarize_results_use(
-    scenario_directory, subproblem_directory, stage_directory, quiet
-):
+def summarize_results_use(scenario_directory, subproblem, stage, quiet):
     if os.path.exists(
         os.path.join(
             scenario_directory,
-            subproblem_directory,
-            stage_directory,
+            subproblem,
+            stage,
             "results",
             "load_balance.csv",
         )