diff --git a/contrib/btree_gist/btree_gist.c b/contrib/btree_gist/btree_gist.c
index c4fc094c65..5fd4cce27d 100644
--- a/contrib/btree_gist/btree_gist.c
+++ b/contrib/btree_gist/btree_gist.c
@@ -55,7 +55,7 @@ gbt_decompress(PG_FUNCTION_ARGS)
 }
 
 /*
- * Returns the btree number for equals, otherwise invalid.
+ * Returns the btree number for supported operators, otherwise invalid.
  */
 Datum
 gist_stratnum_btree(PG_FUNCTION_ARGS)