diff --git a/files/routes/posts.py b/files/routes/posts.py
index bb8c17363..596dc33ee 100644
--- a/files/routes/posts.py
+++ b/files/routes/posts.py
@@ -919,6 +919,10 @@ def submit_post(v):
 			else:
 				try:
 					post_url = upload_video(file)
+					# shit to make webm work
+					if not post_url.endswith('.mp4'):
+						post_url += 'mp4'
+					# print(post_url)
 					new_post.url = post_url
 					new_post.processing = True
 					gevent.spawn(check_processing_thread, v.id, new_post, post_url, g.db)