diff --git a/slack/channels.py b/slack/channels.py
index 6854e91..2a0e284 100644
--- a/slack/channels.py
+++ b/slack/channels.py
@@ -50,7 +50,7 @@ class Channel:
 class Message:
     def __init__(self, json):
         self.__ts   = json["ts"]
-        self.__time = datetime.fromtimestamp(self.__ts))
+        self.__time = datetime.fromtimestamp(float(self.__ts))
         self.__user = users.info(json["user"])
         self.__text = json["text"].encode("utf-8").decode("latin-1")
 
@@ -61,7 +61,7 @@ class Message:
         return "%s %s: %s" % (self.__time.time(), self.__user.name(), self.__text)
 
     def ts(self):
-        return self.__tsi
+        return self.__ts