diff --git a/README.md b/README.md
index 78c0cb1..01ca401 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Nio Template <a href="https://matrix.to/#/#nio-template:matrix.org"><img src="https://img.shields.io/matrix/nio-template:matrix.org?color=blue&label=Join%20the%20Matrix%20Room&server_fqdn=matrix-client.matrix.org" /></a>
+# Nio Template [![Built with matrix-nio](https://img.shields.io/badge/built%20with-matrix--nio-brightgreen)](https://github.com/poljar/matrix-nio) <a href="https://matrix.to/#/#nio-template:matrix.org"><img src="https://img.shields.io/matrix/nio-template:matrix.org?color=blue&label=Join%20the%20Matrix%20Room&server_fqdn=matrix-client.matrix.org" /></a>
 
 A template for creating bots with
 [matrix-nio](https://github.com/poljar/matrix-nio). The documentation for
diff --git a/my_project_name/callbacks.py b/my_project_name/callbacks.py
index 4d09bea..7152e64 100644
--- a/my_project_name/callbacks.py
+++ b/my_project_name/callbacks.py
@@ -46,7 +46,12 @@ class Callbacks(object):
 
         # Process as message if in a public room without command prefix
         has_command_prefix = msg.startswith(self.command_prefix)
-        if not has_command_prefix and not room.is_group:
+
+        # room.is_group is often a DM, but not always.
+        # room.is_group does not allow room aliases
+        # room.member_count > 2 ... we assume a public room
+        # room.member_count <= 2 ... we assume a DM
+        if not has_command_prefix and room.member_count > 2:
             # General message listener
             message = Message(self.client, self.store, self.config, msg, room, event)
             await message.process()