diff --git a/src/snek/model/channel.py b/src/snek/model/channel.py
index d664087..8a40ced 100644
--- a/src/snek/model/channel.py
+++ b/src/snek/model/channel.py
@@ -9,3 +9,4 @@ class ChannelModel(BaseModel):
     is_private = ModelField(name="is_private", required=True, kind=bool, value=False)
     is_listed = ModelField(name="is_listed", required=True, kind=bool, value=True)
     index = ModelField(name="index", required=True, kind=int, value=1000)
+    last_message_on = ModelField(name="last_message_on", required=False, kind=str)
diff --git a/src/snek/service/chat.py b/src/snek/service/chat.py
index 02a4bd5..5eacbeb 100644
--- a/src/snek/service/chat.py
+++ b/src/snek/service/chat.py
@@ -1,12 +1,16 @@
 
 
 
+from snek.system.model import now
 from snek.system.service import BaseService
 
 
 class ChatService(BaseService):
 
     async def send(self,user_uid, channel_uid, message):
+        channel = await self.services.channel.get(uid=channel_uid)
+        if not channel:
+            raise Exception("Channel not found.")
         channel_message = await self.services.channel_message.create(
             channel_uid, 
             user_uid, 
@@ -28,4 +32,6 @@ class ChatService(BaseService):
             uid=channel_message['uid'],
             user_nick=user['nick']
         ))
+        channel['last_message_on'] = now()
+        await self.services.channel.save(channel)
         return sent_to_count
\ No newline at end of file