diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c
index 365d215f2bc..db89137c033 100644
--- a/src/backend/storage/lmgr/lwlock.c
+++ b/src/backend/storage/lmgr/lwlock.c
@@ -131,7 +131,7 @@ static const char *const BuiltinTrancheNames[] = {
 	/* LWTRANCHE_XACT_BUFFER: */
 	"XactBuffer",
 	/* LWTRANCHE_COMMITTS_BUFFER: */
-	"CommitTSBuffer",
+	"CommitTsBuffer",
 	/* LWTRANCHE_SUBTRANS_BUFFER: */
 	"SubtransBuffer",
 	/* LWTRANCHE_MULTIXACTOFFSET_BUFFER: */