diff --git a/sync/cond.lua b/sync/cond.lua
index 1b3ccde..c913b83 100644
--- a/sync/cond.lua
+++ b/sync/cond.lua
@@ -3,7 +3,7 @@ local fiber = require "fiber"
 local cond = {}
 cond.__index = cond
 cond.__tostring = function (self) return "cond<".. (self.name or 'anon') ..">" end
-setmetatable(cond, { __call = function (_, name) return _.new(name) end })
+setmetatable(cond, { __call = function (_, ...) return _.new(...) end })
 
 function cond.new(name, timeout)
 	if name == cond then error("Usage: cond.new([name]) or cond([name]) (not cond:new())", 2) end
diff --git a/sync/latch.lua b/sync/latch.lua
index 4ecf29f..aabc18e 100644
--- a/sync/latch.lua
+++ b/sync/latch.lua
@@ -57,7 +57,7 @@ local function destroy(obj)
     C.box_latch_delete(obj)
 end
 
-function latch.new(name, timeout)
+function latch.new(name)
 	if name == latch then error("Usage: latch.new([name]) or latch([name]) (not latch:new())", 2) end
     local obj = C.box_latch_new()
     if not obj then error("Failed to create latch") end
diff --git a/sync/lock.lua b/sync/lock.lua
index 5cfc0c4..370473e 100644
--- a/sync/lock.lua
+++ b/sync/lock.lua
@@ -15,7 +15,7 @@ local FIBER_STORE = 'sync.lock'
 --     return _G.print(fiber.id(), ...)
 -- end
 
-function lock.new(name, timeout)
+function lock.new(name)
 	if name == lock then error("Usage: lock.new([name]) or lock([name]) (not lock:new())", 2) end
 	return setmetatable({
 		name    = name;
diff --git a/sync/wg.lua b/sync/wg.lua
index 6de98cd..7869e7a 100644
--- a/sync/wg.lua
+++ b/sync/wg.lua
@@ -3,7 +3,7 @@ local fiber = require "fiber"
 local wg = {}
 wg.__index = wg
 wg.__tostring = function (self) return "wg<".. (self.name or 'anon') ..">" end
-setmetatable(wg, { __call = function (_, name) return _.new(name) end })
+setmetatable(wg, { __call = function (_, ...) return _.new(...) end })
 
 function wg.new(name, timeout)
 	if name == wg then error("Usage: wg.new([name]) or wg([name]) (not wg:new())", 2) end