diff --git a/_includes/sidelist-understanding.html b/_includes/sidelist-understanding.html
index 6022445..5f0e33b 100644
--- a/_includes/sidelist-understanding.html
+++ b/_includes/sidelist-understanding.html
@@ -1,4 +1,4 @@
-<li class="category">UNDERSTANDING DDN</li>
+<li class="category">UNDERSTANDING DLR</li>
 <!--{%- include liquid_searchVersionTreeFile.html ver=include.ver curPath=include.curPath targetRelativePath="sidelist-architecture.html" -%}-->
 {%- include liquid_searchVersionTreeFile.html ver=include.ver curPath=include.curPath targetRelativePath="sidelist-parameters-organization.html" -%}
 {%- include liquid_searchVersionTreeFile.html ver=include.ver curPath=include.curPath targetRelativePath="sidelist-parameters-reference.html" -%}