diff --git a/mkdocs.yml b/mkdocs.yml
index 9a706c687d66befab5aa43d5474d5d1f598b27d6..ff03241be459fc2332c379357bb392996a159f7a 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -2,7 +2,8 @@ site_name: IT4Innovations Documentation
 theme_dir: 'material'
 docs_dir: docs.it4i
 
-extra_css: 'docs.it4i/src/css.css'
+extra_css: 
+   - src/css.css
 
 # Repository
 repo_name: it4i-admins/docs.it4i