Update a comment.
diff --git a/src/arena.c b/src/arena.c
index 4596478..38a1ce3 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -668,8 +668,8 @@
/*
* Initialize the map to contain one maximal free untouched run. Mark
- * the pages as zeroed if chunk_alloc() returned a zeroed or decommitted
- * chunk.
+ * the pages as zeroed if arena_chunk_alloc_internal() returned a zeroed
+ * or decommitted chunk.
*/
flag_unzeroed = (zero || !commit) ? 0 : CHUNK_MAP_UNZEROED;
flag_decommitted = commit ? 0 : CHUNK_MAP_DECOMMITTED;