diff --git a/panda/src/nativenet/socket_portable.h b/panda/src/nativenet/socket_portable.h
index 23bc020420..a8f0753d45 100755
--- a/panda/src/nativenet/socket_portable.h
+++ b/panda/src/nativenet/socket_portable.h
@@ -132,7 +132,7 @@ const int LOCAL_BLOCKING_ERROR = WSAEWOULDBLOCK;
 const int LOCAL_CONNECT_BLOCKING = WSAEWOULDBLOCK;
 const int LOCAL_NOTCONNECTED_ERROR = WSAENOTCONN;
 const int LOCAL_TIMEOUT_ERROR = WSAETIMEDOUT;
-const SOCKET BAD_SOCKET = 0xffffffff;
+const SOCKET BAD_SOCKET = (SOCKET)-1;
 
 /************************************************************************
 * Solaris 2.6 and Irix 6.4 STUFF