diff --git a/src/poller.lua b/src/poller.lua
index cd629a7..2ca40ea 100644
--- a/src/poller.lua
+++ b/src/poller.lua
@@ -92,5 +92,6 @@ function M.new(pre_alloc)
 	}, poller_mt)
 end
 
+zmq.poller = M
 return setmetatable(M, {__call = function(tab, ...) return M.new(...) end})
 
diff --git a/src/threads.lua b/src/threads.lua
index 4f6b981..e37838a 100644
--- a/src/threads.lua
+++ b/src/threads.lua
@@ -108,4 +108,5 @@ function M.get_parent_ctx(ctx)
 	return parent_ctx
 end
 
+zmq.threads = M
 return M