diff --git a/croissant/do.lua b/croissant/do.lua
index 2fb9192..a031f72 100644
--- a/croissant/do.lua
+++ b/croissant/do.lua
@@ -319,26 +319,7 @@ local function appendToDebugHistory(code)
     end
 end
 
-local function luaVersion()
-    local f = function()
-        return function()
-        end
-    end
-
-    local t = {
-        nil,
-        [false] = "Lua 5.1",
-        [true] = "Lua 5.2",
-        [1/"-0"] = "Lua 5.3",
-        [1] = "LuaJIT"
-    }
-
-    return t[1] or t[1/0] or t[f() == f()]
-end
-
 local function banner()
-    local version = luaVersion()
-
     if tonumber(_VERSION:match("Lua (%d+)")) < 5
         or tonumber(_VERSION:match("Lua %d+%.(%d+)")) < 1 then
         print(colors.red "Croissant requires at least Lua 5.1")
@@ -347,9 +328,9 @@ local function banner()
 
     print(
         "🥐  Croissant 0.0.1 (C) 2019 Benoit Giannangeli\n"
-        .. version ..  (version:match "^LuaJIT"
-                and " Copyright (C) 2005-2017 Mike Pall. http://luajit.org/"
-                or " Copyright (C) 1994-2018 Lua.org, PUC-Rio")
+        .. (type(jit) == "table"
+            and jit.version
+            or ("PUC-Rio " .. _VERSION))
     )
 end