diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c
index 2d43bf2cc13..fc4b42ea5d6 100644
--- a/src/backend/storage/lmgr/lwlock.c
+++ b/src/backend/storage/lmgr/lwlock.c
@@ -1004,7 +1004,7 @@ LWLockWakeup(LWLock *lock)
 			else
 				desired_state &= ~LW_FLAG_RELEASE_OK;
 
-			if (proclist_is_empty(&wakeup))
+			if (proclist_is_empty(&lock->waiters))
 				desired_state &= ~LW_FLAG_HAS_WAITERS;
 
 			desired_state &= ~LW_FLAG_LOCKED;	/* release lock */