diff --git a/zmq.c b/zmq.c
index a9a8175..46d6d3b 100644
--- a/zmq.c
+++ b/zmq.c
@@ -357,14 +357,8 @@ LUALIB_API int luaopen_zmq(lua_State *L)
     set_zmq_const(REP);
     set_zmq_const(XREQ);
     set_zmq_const(XREP);
-
-#if defined(ZMQ_PULL) && defined(ZMQ_PUSH)
     set_zmq_const(PULL);
     set_zmq_const(PUSH);
-#else
-    set_zmq_const(UPSTREAM);
-    set_zmq_const(DOWNSTREAM);
-#endif
 
     set_zmq_const(HWM);
     set_zmq_const(SWAP);