diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index fca9703309b..217b2977a65 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2009-12-22  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* include/std/mutex (call_once(once_flag&, _Callable, _Args&&...)):
+	Explicitly qualify with std:: bind calls.
+
 2009-12-21  Benjamin Kosnik  <bkoz@redhat.com>
 
 	PR libstdc++/42456
diff --git a/libstdc++-v3/include/std/mutex b/libstdc++-v3/include/std/mutex
index b3a04380641..cc91e95e456 100644
--- a/libstdc++-v3/include/std/mutex
+++ b/libstdc++-v3/include/std/mutex
@@ -722,12 +722,12 @@ namespace std
     call_once(once_flag& __once, _Callable __f, _Args&&... __args)
     {
 #ifdef _GLIBCXX_HAVE_TLS
-      auto __bound_functor = bind(__f, __args...);
+      auto __bound_functor = std::bind(__f, __args...);
       __once_callable = &__bound_functor;
       __once_call = &__once_call_impl<decltype(__bound_functor)>;
 #else
       unique_lock<mutex> __functor_lock(__get_once_mutex());
-      __once_functor = bind(__f, __args...);
+      __once_functor = std::bind(__f, __args...);
       __set_once_functor_lock_ptr(&__functor_lock);
 #endif