diff --git a/botbotbot/__main__.py b/botbotbot/__main__.py
index 7d075c6..42ae8f6 100644
--- a/botbotbot/__main__.py
+++ b/botbotbot/__main__.py
@@ -112,8 +112,8 @@ async def add_more_reaction(reaction, user):
 
 
 @bot.listen("on_message_edit")
-async def react_message_edit(before, after):
-    if after.author != bot.user and random.random() < 50 / 100:
+async def react_message_edit(before: discord.Message, after: discord.Message) -> None:
+    if before.content != after.content and after.author != bot.user and random.random() < 50 / 100:
         logger.info(f"React to edit from {after.author}")
         await after.add_reaction("👀")