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-rw-r--r--src/thread/pthread_cond_broadcast.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/thread/pthread_cond_broadcast.c b/src/thread/pthread_cond_broadcast.c
index 30f7f6df..6002c535 100644
--- a/src/thread/pthread_cond_broadcast.c
+++ b/src/thread/pthread_cond_broadcast.c
@@ -2,7 +2,8 @@
 
 int pthread_cond_broadcast(pthread_cond_t *c)
 {
-	if (a_swap(&c->_c_block, 0))
+	int w = c->_c_waiters;
+	if (a_swap(&c->_c_block, 0) || w)
 		__wake(&c->_c_block, -1, 0);
 	return 0;
 }