diff --git a/src/osgPlugins/osc/ip/posix/UdpSocket.cpp b/src/osgPlugins/osc/ip/posix/UdpSocket.cpp
index 75c892c12..5b49d9c96 100644
--- a/src/osgPlugins/osc/ip/posix/UdpSocket.cpp
+++ b/src/osgPlugins/osc/ip/posix/UdpSocket.cpp
@@ -176,7 +176,10 @@ public:
     {
         assert( isConnected_ );
 
-        send( socket_, data, size, 0 );
+        if (send( socket_, data, size, 0 ) < 0)
+        {
+            throw std::runtime_error("error when calling send(..)\n");
+        }
     }
 
     void SendTo( const IpEndpointName& remoteEndpoint, const char *data, int size )
@@ -184,7 +187,10 @@ public:
         sendToAddr_.sin_addr.s_addr = htonl( remoteEndpoint.address );
         sendToAddr_.sin_port = htons( remoteEndpoint.port );
 
-        sendto( socket_, data, size, 0, (sockaddr*)&sendToAddr_, sizeof(sendToAddr_) );
+        if (sendto( socket_, data, size, 0, (sockaddr*)&sendToAddr_, sizeof(sendToAddr_) ) < 0)
+        {
+            throw std::runtime_error("error when calling send(..)\n");
+        }
     }
 
     void Bind( const IpEndpointName& localEndpoint )