diff --git a/redditbot.py b/redditbot.py
index 9c0726a..f5c68b7 100644
--- a/redditbot.py
+++ b/redditbot.py
@@ -253,7 +253,7 @@ async def main():
         else:
             if getattr(random_post, 'selftext', None):
                 text += '\n'
-                caplength = 4096 - len(client.parse_mode.parse(text)[0])
+                caplength = 4095 - len(client.parse_mode.parse(text)[0])
                 text += html.escape(random_post.selftext[:caplength])
             await _start_broadcast([text], None, chats)