diff --git a/unix/x0vncserver/PollingManager.cxx b/unix/x0vncserver/PollingManager.cxx
index 3a040e2..d7f6f46 100644
--- a/unix/x0vncserver/PollingManager.cxx
+++ b/unix/x0vncserver/PollingManager.cxx
@@ -31,6 +31,8 @@
 
 #include <x0vncserver/PollingManager.h>
 
+using namespace rfb;
+
 static LogWriter vlog("PollingMgr");
 
 const int PollingManager::m_pollingOrder[32] = {