diff --git a/DOCUMENTATION.md b/DOCUMENTATION.md
index 6d12f23f..ace57c4f 100644
--- a/DOCUMENTATION.md
+++ b/DOCUMENTATION.md
@@ -204,7 +204,7 @@ Go to Ghost `Admin Panel` → General → `Blog Cover`
 
 ### Cover Filter
 
-The linear gradient of the cover filter is based in `$cover-primary` and `$cover-secondary` colors. If you want to adapt the filter for your cover, check [background-filter](https://github.com/Kikobeats/uno-zen/blob/master/assets/scss/modules/_mixins.scss#L11) mixin.
+The linear gradient of the cover filter is based in `$cover-primary` and `$cover-secondary` colors. If you want to adapt the filter for your cover, check [background-filter](https://github.com/Kikobeats/uno-zen/blob/master/assets/scss/modules/_variables.scss#L22) mixin.
 
 ### Custom static pages