diff --git a/modules/base/header.lua b/modules/base/header.lua
index a9ee54e..05bc074 100644
--- a/modules/base/header.lua
+++ b/modules/base/header.lua
@@ -1,4 +1,4 @@
-tT,p,cT,pC,C,T={},1,1,1,coroutine,table
+tT,p,cT,pC,C,T,TS,TN={},1,1,1,coroutine,table,tostring,tonumber
 function E()
  if tT[cT] ~= nil then return tT[cT][3] end
 end
diff --git a/strip.lua b/strip.lua
index cb8e3db..4428a89 100644
--- a/strip.lua
+++ b/strip.lua
@@ -25,6 +25,8 @@ replacements={
 {"%-%-.-\n",""},
 {"coroutine%.","C."},
 {"table%.","T."},
+{"tostring","TS"},
+{"tonumber","TN"},
 }
 for k,v in ipairs(replacements) do
  while ss:find(v[1]) ~= nil do