I'm using visual studio 2013.

I'm using the web essential tool for my less/css files.

when I'm saving a less file it's add a line like the one below to the end css file,for example:

```
/*# sourceMappingURL=filename.css.map */

```

how can I stop the vs2013 from adding this? 

I went to the web essential options and disable the option called: "create source map files" and I change it to false,it's not creating map files but still add the line above to the css file.