diff --git a/app/routes/posts.py b/app/routes/posts.py
index 1d4b637..6138d54 100644
--- a/app/routes/posts.py
+++ b/app/routes/posts.py
@@ -33,7 +33,7 @@ def create_post(thread_id, user_id, content, markup_language="babycode"):
 
 
 def update_post(post_id, new_content, markup_language='babycode'):
-    parsed_content = babycode_to_html(content)
+    parsed_content = babycode_to_html(new_content)
     with db.transaction():
         post = Posts.find({'id': post_id})
         new_revision = PostHistory.create({