diff --git a/src/backend/storage/lmgr/lock.c b/src/backend/storage/lmgr/lock.c
index e62ba62a0f1fcd06ba1a9444cfd1aa3e49e4aa99..e6fc7a2b298d209951aeb22a067b54dd8a2425a8 100644
--- a/src/backend/storage/lmgr/lock.c
+++ b/src/backend/storage/lmgr/lock.c
@@ -2878,7 +2878,7 @@ LockRefindAndRelease(LockMethod lockMethodTable, PGPROC *proc,
 	 * Decrement strong lock count.  This logic is needed only for 2PC.
 	 */
 	if (decrement_strong_lock_count
-		&& ConflictsWithRelationFastPath(&lock->tag, lockmode))
+		&& ConflictsWithRelationFastPath(locktag, lockmode))
 	{
 		uint32		fasthashcode = FastPathStrongLockHashPartition(hashcode);