diff --git a/blog/helpers.py b/blog/helpers.py
index 8535cb93..63c9e36d 100644
--- a/blog/helpers.py
+++ b/blog/helpers.py
@@ -112,7 +112,7 @@ def get_json(self):
             "github_last_updated_date": self.last_updated,
             "title": self.title,
             "slug_url": self.get_slug(),
-            "publishedAt": self.publishedAt,
+            "published_date": self.publishedAt,
             "filepath": self.get_filepath(),
             "meta_desc": self.meta_desc,
         }