diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c
index 4ca2789d10..fcaa9faaca 100644
--- a/src/backend/storage/ipc/procarray.c
+++ b/src/backend/storage/ipc/procarray.c
@@ -2141,7 +2141,7 @@ GetSnapshotDataReuse(Snapshot snapshot)
  * information may not be available.  If we find any overflowed subxid arrays,
  * we have to mark the snapshot's subxid data as overflowed, and extra work
  * *may* need to be done to determine what's running (see XidInMVCCSnapshot()
- * in heapam_visibility.c).
+ * in snapmgr.c).
  *
  * We also update the following backend-global variables:
  *		TransactionXmin: the oldest xmin of any snapshot in use in the