diff --git a/_config.template.yml b/_config.template.yml
index c6f2616a3..a66ea4795 100644
--- a/_config.template.yml
+++ b/_config.template.yml
@@ -105,6 +105,13 @@ qrcode:
 # Menu Settings
 # ---------------------------------------------------------------
 
+# TOC Button
+
+toc:
+#   use: choose whether the line_number of toc will show or not.
+#       Available value of "linenumber": true | false
+    linenumber: true
+
 # SNS Menu
 sns:
     email: youremail@email.com
diff --git a/layout/_partial/toc_button.ejs b/layout/_partial/toc_button.ejs
index 6efadff68..7d2b5d859 100644
--- a/layout/_partial/toc_button.ejs
+++ b/layout/_partial/toc_button.ejs
@@ -24,7 +24,7 @@
     <ul class="post-toc-wrap mdl-menu mdl-menu--bottom-left mdl-js-menu mdl-js-ripple-effect" for="post-toc-trigger-btn" style="max-height:80vh; overflow-y:scroll;">
         <%- toc(page.content, {
             class: 'post-toc',
-            list_number: true,
+            list_number: <%= theme.toc.linenumber %>,
             style: 'max-height:80vh; overflow-y:scroll;'
         }) %>
 
@@ -33,5 +33,7 @@
             Some Action
         </li>
         -->
+
     </ul>
+
 <% } %>