diff --git a/mdx/cz-eduid/beans.xml b/mdx/cz-eduid/beans.xml
index d7362b5a..e90f366c 100644
--- a/mdx/cz-eduid/beans.xml
+++ b/mdx/cz-eduid/beans.xml
@@ -5,6 +5,16 @@
 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 
 
+    <!--
+        Metadata locations:
+        
+        for SP (set of IdP only): https://metadata.eduid.cz/entities/eduid+idp
+        for IdP (set of SP only): https://metadata.eduid.cz/entities/eduid+sp
+        complete set of IdP and SP: https://metadata.eduid.cz/entities/eduid
+        
+        See: http://www.eduid.cz/wiki/en/eduid/tech/details/index
+    -->
+    
     <!--
         Fetch the export metadata aggregate.