diff --git a/zmq.c b/zmq.c
index 8050372..b9b3f06 100644
--- a/zmq.c
+++ b/zmq.c
@@ -345,8 +345,8 @@ LUALIB_API int luaopen_zmq(lua_State *L)
     set_zmq_const(REP);
     set_zmq_const(XREQ);
     set_zmq_const(XREP);
-    set_zmq_const(UPSTREAM);
-    set_zmq_const(DOWNSTREAM);
+    set_zmq_const(PULL);
+    set_zmq_const(PUSH);
 
     set_zmq_const(HWM);
     set_zmq_const(SWAP);