diff --git a/data_test/examples/dummy-3areas-3candidates-3links/settings/generaldata.ini b/data_test/examples/dummy-3areas-3candidates-3links/settings/generaldata.ini
index 03ea230ed..a82676dbf 100644
--- a/data_test/examples/dummy-3areas-3candidates-3links/settings/generaldata.ini
+++ b/data_test/examples/dummy-3areas-3candidates-3links/settings/generaldata.ini
@@ -90,3 +90,5 @@ seed-thermal-costs = 8005489
 seed-hydro-costs = 9005489
 seed-initial-reservoir-levels = 10005489
 
+[compatibility]
+hydro-pmax = hourly
\ No newline at end of file