diff --git a/lume.lua b/lume.lua
index 5fe9a40..9255c4e 100644
--- a/lume.lua
+++ b/lume.lua
@@ -166,7 +166,7 @@ end
 
 
 function lume.clone(t)
-  rtn = {}
+  local rtn = {}
   for k, v in pairs(t) do rtn[k] = v end
   return rtn
 end