diff --git a/docs/operator/did_meta.md b/docs/operator/did_meta.md
index 41fec95bedf..666c648294e 100644
--- a/docs/operator/did_meta.md
+++ b/docs/operator/did_meta.md
@@ -53,8 +53,9 @@ order each configured metadata plugin if it supports this KEY.
 
 ## How to develop a custom metadata solution
 
-The module you develop needs to extend the [DidMetaPlugin](/) Abstract
-class. The methods needed are:
+The module you develop needs to extend the 
+[DidMetaPlugin](https://github.com/rucio/rucio/blob/master/lib/rucio/core/did_meta_plugins/did_meta_plugin_interface.py) 
+Abstract class. The methods needed are:
 
 ```python
 get_metadata(scope, name, session=None)