diff --git a/src/osgPlugins/osc/ip/posix/UdpSocket.cpp b/src/osgPlugins/osc/ip/posix/UdpSocket.cpp
index 5b49d9c96..81385fb03 100644
--- a/src/osgPlugins/osc/ip/posix/UdpSocket.cpp
+++ b/src/osgPlugins/osc/ip/posix/UdpSocket.cpp
@@ -325,6 +325,7 @@ class SocketReceiveMultiplexer::Implementation{
 public:
     Implementation()
     {
+        break_ = false;
         if( pipe(breakPipe_) != 0 )
             throw std::runtime_error( "creation of asynchronous break pipes failed\n" );
     }