diff --git a/config/production.env b/config/production.env
index f115ea4d..90a5a83d 100644
--- a/config/production.env
+++ b/config/production.env
@@ -23,4 +23,4 @@ HIDE_NYPL_SOURCE=
 BIB_HAS_VOLUMES_THRESHOLD=0.8
 BIB_HAS_DATES_THRESHOLD=0.8
 
-SUBJECTS_INDEX=browse-prod-2025-09-22
+BROWSE_INDEX=browse-prod-2025-09-22