diff --git a/tests/streams/socketstream.cpp b/tests/streams/socketstream.cpp
index acd4d0a396..7a4002163a 100644
--- a/tests/streams/socketstream.cpp
+++ b/tests/streams/socketstream.cpp
@@ -20,6 +20,7 @@
     #include "wx/log.h"
 #endif
 
+#include "wx/gsocket.h"
 #include "wx/socket.h"
 #include "wx/sckstrm.h"
 #include "wx/thread.h"