diff --git a/src/thread/pthread_barrier_destroy.c b/src/thread/pthread_barrier_destroy.c
index f82664d5419181c9c10a669d55d726b738e54f01..3ebc2b39a2c6af2ec58e09752aa0ef9464e8e9fc 100644
--- a/src/thread/pthread_barrier_destroy.c
+++ b/src/thread/pthread_barrier_destroy.c
@@ -5,6 +5,8 @@ void __vm_lock(int), __vm_unlock(void);
 int pthread_barrier_destroy(pthread_barrier_t *b)
 {
 	if (b->_b_limit < 0) {
+		int seq = b->_b_seq;
+		if (seq & 1) __wait(&b->_b_seq, 0, seq, 0);
 		__vm_lock(-1);
 		__vm_unlock();
 	}