diff --git a/include/boost/asio/detail/impl/select_reactor.ipp b/include/boost/asio/detail/impl/select_reactor.ipp
index dce53bd5..f8f9f545 100644
--- a/include/boost/asio/detail/impl/select_reactor.ipp
+++ b/include/boost/asio/detail/impl/select_reactor.ipp
@@ -310,7 +310,7 @@ void select_reactor::run_thread()
   {
     lock.unlock();
     op_queue<operation> ops;
-    run(true, ops);
+    run(-1, ops);
     scheduler_.post_deferred_completions(ops);
     lock.lock();
   }