diff --git a/lapis/flow.lua b/lapis/flow.lua
index f11e2270..684b9490 100644
--- a/lapis/flow.lua
+++ b/lapis/flow.lua
@@ -3,6 +3,7 @@ do
   local _obj_0 = _G
   type, getmetatable, setmetatable, rawset, rawget = _obj_0.type, _obj_0.getmetatable, _obj_0.setmetatable, _obj_0.rawset, _obj_0.rawget
 end
+local unpack = table.unpack or unpack
 local Flow
 local is_flow
 is_flow = function(cls)
diff --git a/lapis/flow.moon b/lapis/flow.moon
index f8ffce41..d33b8062 100644
--- a/lapis/flow.moon
+++ b/lapis/flow.moon
@@ -1,6 +1,8 @@
 
 import type, getmetatable, setmetatable, rawset, rawget from _G
 
+unpack = table.unpack or unpack
+
 local Flow
 
 is_flow = (cls) ->