diff --git a/moonscript/base.lua b/moonscript/base.lua
index 379b6bc..e436678 100644
--- a/moonscript/base.lua
+++ b/moonscript/base.lua
@@ -18,14 +18,30 @@ local dirsep, line_tables, create_moonpath, to_lua, moon_loader, loadstring, loa
 dirsep = "/"
 line_tables = require("moonscript.line_tables")
 create_moonpath = function(package_path)
-  local moonpaths = { }
-  local _list_0 = split(package.path, ";")
-  for _index_0 = 1, #_list_0 do
-    local path = _list_0[_index_0]
-    local p = path:match("^(.-)%.lua$")
-    if p then
-      insert(moonpaths, p .. ".moon")
+  local moonpaths
+  do
+    local _accum_0 = { }
+    local _len_0 = 1
+    local _list_0 = split(package_path, ";")
+    for _index_0 = 1, #_list_0 do
+      local _continue_0 = false
+      repeat
+        local path = _list_0[_index_0]
+        local prefix = path:match("^(.-)%.lua$")
+        if not (prefix) then
+          _continue_0 = true
+          break
+        end
+        local _value_0 = prefix .. ".moon"
+        _accum_0[_len_0] = _value_0
+        _len_0 = _len_0 + 1
+        _continue_0 = true
+      until true
+      if not _continue_0 then
+        break
+      end
     end
+    moonpaths = _accum_0
   end
   return concat(moonpaths, ";")
 end
@@ -134,5 +150,6 @@ return {
   dirsep = dirsep,
   dofile = dofile,
   loadfile = loadfile,
-  loadstring = loadstring
+  loadstring = loadstring,
+  create_moonpath = create_moonpath
 }
diff --git a/moonscript/base.moon b/moonscript/base.moon
index 8cfbfb3..b2068f0 100644
--- a/moonscript/base.moon
+++ b/moonscript/base.moon
@@ -13,10 +13,10 @@ line_tables = require "moonscript.line_tables"
 
 -- create moon path package from lua package path
 create_moonpath = (package_path) ->
-  moonpaths = {}
-  for path in *split package.path, ";"
-    p = path\match "^(.-)%.lua$"
-    if p then insert moonpaths, p..".moon"
+  moonpaths = for path in *split package_path, ";"
+    prefix = path\match "^(.-)%.lua$"
+    continue unless prefix
+    prefix .. ".moon"
   concat moonpaths, ";"
 
 to_lua = (text, options={}) ->
@@ -103,6 +103,6 @@ remove_loader = ->
 {
   _NAME: "moonscript"
   :insert_loader, :remove_loader, :to_lua, :moon_loader, :dirsep,
-  :dofile, :loadfile, :loadstring
+  :dofile, :loadfile, :loadstring, :create_moonpath
 }
 
diff --git a/spec/moonscript_spec.moon b/spec/moonscript_spec.moon
new file mode 100644
index 0000000..8db5558
--- /dev/null
+++ b/spec/moonscript_spec.moon
@@ -0,0 +1,8 @@
+-- moonscript module
+
+describe "moonscript.base", ->
+  it "should create moonpath", ->
+    path = ";./?.lua;/usr/share/lua/5.1/?.lua;/usr/share/lua/5.1/?/init.lua;/usr/lib/lua/5.1/?.luac;/home/leafo/.luarocks/lua/5.1/?.lua"
+    import create_moonpath from require "moonscript.base"
+    assert.same "./?.moon;/usr/share/lua/5.1/?.moon;/usr/share/lua/5.1/?/init.moon;/home/leafo/.luarocks/lua/5.1/?.moon", create_moonpath(path)
+