diff --git a/files/routes/comments.py b/files/routes/comments.py
index 8b6eda91e..ef72d9527 100644
--- a/files/routes/comments.py
+++ b/files/routes/comments.py
@@ -683,6 +683,8 @@ def edit_comment(cid, v):
 		g.db.flush()
 
 		gevent.spawn(postprocess_comment, c.body, c.body_html, c.id)
+	else:
+		abort(400, "You need to change something!")
 
 
 	return {
diff --git a/files/routes/posts.py b/files/routes/posts.py
index 8337f84cd..c83ae8aa2 100644
--- a/files/routes/posts.py
+++ b/files/routes/posts.py
@@ -1055,6 +1055,8 @@ def edit_post(pid, v):
 				for x in notify_users:
 					add_notif(cid, x, text, pushnotif_url=p.permalink)
 
+	changed = False
+
 
 	if title != p.title:
 		title_html = filter_emojis_only(title, golden=False, obj=p, author=p.author)
@@ -1068,6 +1070,8 @@ def edit_post(pid, v):
 		p.title = title
 		p.title_html = title_html
 
+		changed = True
+
 	body = process_files(request.files, v, body).strip()
 	if len(body) > POST_BODY_LENGTH_LIMIT(g.v):
 		abort(400, f'Post body is too long (max {POST_BODY_LENGTH_LIMIT(g.v)} characters)')
@@ -1093,6 +1097,10 @@ def edit_post(pid, v):
 
 		gevent.spawn(postprocess_post, p.url, p.body, p.body_html, p.id, False, True)
 
+		changed = True
+
+	if not changed:
+		abort(400, "You need to change something!")
 
 	if not p.draft and not complies_with_chud(p):
 		abort(403, f'You have to include "{p.author.chud_phrase}" in your post!')