diff --git a/README.md b/README.md
index 11547dc..f82dd0c 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ revolving around natural language rule-making and self modification.
 
 ## Dependencies
 
-Nomsu's only dependencies are [Lua 5.2 or later](https://www.lua.org/) or [Luajit 2.0 or later](http://luajit.org/) and [LPEG](http://www.inf.puc-rio.br/~roberto/lpeg/) (`luarocks install lpeg`). Nomsu's compiler was written in [Moonscript](http://moonscript.org/), but all of the .moon files have been compiled into lua for convenience, so Moonscript is not a dependency. Optionally, if [luafilesystem](https://github.com/spacewander/luafilesystem) is installed, it will be used. Otherwise Nomsu will fall back to using system commands (`find` and `ls`), which is slower and a bit less safe. Nomsu has been tested on Mac and Linux, but not Windows.
+Nomsu's only dependencies are [Lua 5.2 or later](https://www.lua.org/) or [Luajit 2.0 or later](http://luajit.org/) and [LPEG](http://www.inf.puc-rio.br/~roberto/lpeg/) (`luarocks install lpeg`). Nomsu's compiler was written in [Moonscript](http://moonscript.org/), but all of the .moon files have been compiled into lua for convenience, so Moonscript is not a dependency. Optionally, if luafilesystem ([Lua version](https://github.com/keplerproject/luafilesystem) or [LuaJIT version](https://github.com/spacewander/luafilesystem)) is installed, it will be used. Otherwise Nomsu will fall back to using system commands (`find` and `ls`), which is slower and a bit less safe. Nomsu has been tested on Mac and Linux, but not Windows.
 
 ## Usage
 
diff --git a/files.lua b/files.lua
index 0de29ed..cda361d 100644
--- a/files.lua
+++ b/files.lua
@@ -157,7 +157,13 @@ if ok then
   end
 else
   if not (run_cmd('find . -maxdepth 0')) then
-    error("Could not find 'luafilesystem' module and couldn't run system command `find` (this might happen on Windows). Please install `luafilesystem` (which can be found at: http://keplerproject.github.io/luafilesystem/ or `luarocks install luafilesystem`)", 0)
+    local url
+    if jit then
+      url = 'https://github.com/spacewander/luafilesystem'
+    else
+      url = 'https://github.com/keplerproject/luafilesystem'
+    end
+    error("Could not find 'luafilesystem' module and couldn't run system command `find` (this might happen on Windows). Please install `luafilesystem` (which can be found at: " .. tostring(url) .. " or `luarocks install luafilesystem`)", 0)
   end
 end
 Files.walk = function(path, flush_cache)
diff --git a/files.moon b/files.moon
index d62a030..ceb24e8 100644
--- a/files.moon
+++ b/files.moon
@@ -92,7 +92,10 @@ if ok
         return _BROWSE_CACHE[filename]
 else
     unless run_cmd('find . -maxdepth 0')
-        error "Could not find 'luafilesystem' module and couldn't run system command `find` (this might happen on Windows). Please install `luafilesystem` (which can be found at: http://keplerproject.github.io/luafilesystem/ or `luarocks install luafilesystem`)", 0
+        url = if jit
+            'https://github.com/spacewander/luafilesystem'
+        else 'https://github.com/keplerproject/luafilesystem'
+        error "Could not find 'luafilesystem' module and couldn't run system command `find` (this might happen on Windows). Please install `luafilesystem` (which can be found at: #{url} or `luarocks install luafilesystem`)", 0
 
 Files.walk = (path, flush_cache=false)->
     if flush_cache