1 files changed, 1 insertions, 1 deletions
diff --git a/libcxx/src/mutex.cpp b/libcxx/src/mutex.cpp
index 7ea734968a5..1f8160d0a58 100644
--- a/libcxx/src/mutex.cpp
+++ b/libcxx/src/mutex.cpp
@@ -235,7 +235,7 @@ __call_once(volatile unsigned long& flag, void* arg, void(*func)(void*))
             pthread_mutex_lock(&mut);
             flag = 0ul;
             pthread_mutex_unlock(&mut);
-            pthread_cond_signal(&cv);
+            pthread_cond_broadcast(&cv);
             throw;
         }
     }