diff --git a/src/server/shared/Networking/NetworkThread.h b/src/server/shared/Networking/NetworkThread.h
index 0cd01af7eef..e384e1515ae 100644
--- a/src/server/shared/Networking/NetworkThread.h
+++ b/src/server/shared/Networking/NetworkThread.h
@@ -37,7 +37,7 @@ template<class SocketType>
 class NetworkThread
 {
 public:
-    NetworkThread() : _connections(0), _stopped(false), _thread(nullptr),
+    NetworkThread() : _connections(0), _stopped(false), _thread(nullptr), _io_service(1),
         _acceptSocket(_io_service), _updateTimer(_io_service)
     {
     }