diff --git a/_config.yml b/_config.yml
index aaaa2ad42fd..1076673d013 100644
--- a/_config.yml
+++ b/_config.yml
@@ -114,6 +114,7 @@ comments:
     category:
     category_id:
     mapping: # optional, default to 'pathname'
+    strict: # optional, default to '0'
     input_position: # optional, default to 'bottom'
     lang: # optional, default to the value of `site.lang`
     reactions_enabled: # optional, default to the value of `1`
diff --git a/_includes/comments/giscus.html b/_includes/comments/giscus.html
index 8f042468e62..526aa22bcf1 100644
--- a/_includes/comments/giscus.html
+++ b/_includes/comments/giscus.html
@@ -25,6 +25,7 @@
       'data-category': '{{ site.comments.giscus.category }}',
       'data-category-id': '{{ site.comments.giscus.category_id }}',
       'data-mapping': '{{ site.comments.giscus.mapping | default: 'pathname' }}',
+      'data-strict' : '{{ site.comments.giscus.strict | default: '0' }}',
       'data-reactions-enabled': '{{ site.comments.giscus.reactions_enabled | default: '1' }}',
       'data-emit-metadata': '0',
       'data-theme': initTheme,