diff --git a/src/backend/access/nbtree/nbtsearch.c b/src/backend/access/nbtree/nbtsearch.c
index 1f809c24a1..c655dadb96 100644
--- a/src/backend/access/nbtree/nbtsearch.c
+++ b/src/backend/access/nbtree/nbtsearch.c
@@ -424,7 +424,7 @@ _bt_binsrch(Relation rel,
 
 /*
  *
- *	bt_binsrch_insert() -- Cacheable, incremental leaf page binary search.
+ *	_bt_binsrch_insert() -- Cacheable, incremental leaf page binary search.
  *
  * Like _bt_binsrch(), but with support for caching the binary search
  * bounds.  Only used during insertion, and only on the leaf page that it