diff --git a/src/backend/utils/activity/pgstat.c b/src/backend/utils/activity/pgstat.c
index ad5cf6fb91..0d9d09c492 100644
--- a/src/backend/utils/activity/pgstat.c
+++ b/src/backend/utils/activity/pgstat.c
@@ -73,6 +73,7 @@
  * - pgstat_database.c
  * - pgstat_function.c
  * - pgstat_relation.c
+ * - pgstat_replslot.c
  * - pgstat_slru.c
  * - pgstat_subscription.c
  * - pgstat_wal.c