Great plugin, been using it on a variety of websites, without any issue.

it doesn’t work , i have b2evo 5.1.2

@Snaceur a minor update has been published, just to make this plugin compatible with version 5.1.2 of b2evolution. However, there are two built-in plugins that are fully supported and maintained by the core developers team (http://plugins.b2evolution.net/code-highlight-plugin and http://plugins.b2evolution.net/prism-plugin), thus I recommend you to use them.