diff --git a/message_ix_models/model/material/data_util.py b/message_ix_models/model/material/data_util.py
index 0eb43fa4fe..77b63cfd07 100644
--- a/message_ix_models/model/material/data_util.py
+++ b/message_ix_models/model/material/data_util.py
@@ -768,9 +768,7 @@ def calc_hist_activity(
     df_orig = get_hist_act_data(
         "all_technologies.csv", years=years, iea_data_path=iea_data_path
     )
-    df_mat = get_hist_act_data(
-        "industry.csv", years=years, iea_data_path=iea_data_path
-    )
+    df_mat = get_hist_act_data("industry.csv", years=years, iea_data_path=iea_data_path)
     df_chem = get_hist_act_data(
         "chemicals.csv", years=years, iea_data_path=iea_data_path
     )