diff --git a/src/thread/pthread_rwlock_unlock.c b/src/thread/pthread_rwlock_unlock.c
index 5edca634b785c889db3edcbe31b42cc9ccf3abf0..a6d20854c8a5001b3d8739636619d4d76c73694b 100644
--- a/src/thread/pthread_rwlock_unlock.c
+++ b/src/thread/pthread_rwlock_unlock.c
@@ -12,7 +12,7 @@ int pthread_rwlock_unlock(pthread_rwlock_t *rw)
 	} while (a_cas(&rw->_rw_lock, val, new) != val);
 
 	if (!new && (waiters || val<0))
-		__wake(&rw->_rw_lock, 1, 0);
+		__wake(&rw->_rw_lock, cnt, 0);
 
 	return 0;
 }