diff --git a/steam/core/msg/__init__.py b/steam/core/msg/__init__.py
index 1288b5b..cd82b8a 100644
--- a/steam/core/msg/__init__.py
+++ b/steam/core/msg/__init__.py
@@ -67,7 +67,6 @@ class Msg(object):
     def __init__(self, msg, data=None, extended=False):
         self.extended = extended
         self.header = ExtendedMsgHdr(data) if extended else MsgHdr(data)
-        self.header.msg = msg
         self.msg = msg
 
         if data:
@@ -78,6 +77,14 @@ class Msg(object):
         if deserializer:
             self.body = deserializer(data)
 
+    @property
+    def msg(self):
+        return self.header.msg
+
+    @msg.setter
+    def msg(self, value):
+        self.header.msg = EMsg(value)
+
     def serialize(self):
         return self.header.serialize() + self.body.serialize()
 
@@ -133,8 +140,8 @@ class MsgProto(object):
 
     def __init__(self, msg, data=None):
         self._header = MsgHdrProtoBuf(data)
-        self.msg = self._header.msg = msg
         self.header = self._header.proto
+        self.msg = msg
 
         if msg == EMsg.ServiceMethod:
             proto = get_um(self.header.target_job_name)
@@ -152,6 +159,14 @@ class MsgProto(object):
                 data = data[self._header._fullsize:]
                 self.body.ParseFromString(data)
 
+    @property
+    def msg(self):
+        return self._header.msg
+
+    @msg.setter
+    def msg(self, value):
+        self._header.msg = EMsg(value)
+
     def serialize(self):
         return self._header.serialize() + self.body.SerializeToString()