diff --git a/libc/bionic/__cxa_guard.cpp b/libc/bionic/__cxa_guard.cpp
index 5b34b58..97284d5 100644
--- a/libc/bionic/__cxa_guard.cpp
+++ b/libc/bionic/__cxa_guard.cpp
@@ -109,7 +109,7 @@
       }
     }
 
-    __futex_wait_ex(&gv->state, false, CONSTRUCTION_UNDERWAY_WITH_WAITER, NULL);
+    __futex_wait_ex(&gv->state, false, CONSTRUCTION_UNDERWAY_WITH_WAITER, false, nullptr);
     old_value = atomic_load_explicit(&gv->state, memory_order_relaxed);
   }
 }