diff --git a/my_project_name/callbacks.py b/my_project_name/callbacks.py
index 08bbbc1..8019c1e 100644
--- a/my_project_name/callbacks.py
+++ b/my_project_name/callbacks.py
@@ -104,6 +104,19 @@ class Callbacks:
         # Successfully joined room
         logger.info(f"Joined {room.room_id}")
 
+    async def invite_event_filtered_callback(
+        self, room: MatrixRoom, event: InviteMemberEvent
+    ) -> None:
+        """
+        Since the InviteMemberEvent is fired for every m.room.member state received
+        in a sync response's `rooms.invite` section, we will receive some that are
+        not actually our own invite event (such as the inviter's membership).
+        This makes sure we only call `callbacks.invite` with our own invite events.
+        """
+        if event.state_key == self.client.user_id:
+            # This is our own membership (invite) event
+            await self.invite(room, event)
+
     async def _reaction(
         self, room: MatrixRoom, event: UnknownEvent, reacted_to_id: str
     ) -> None:
diff --git a/my_project_name/main.py b/my_project_name/main.py
index 9a83088..9554ffd 100644
--- a/my_project_name/main.py
+++ b/my_project_name/main.py
@@ -11,7 +11,6 @@ from nio import (
     InviteMemberEvent,
     LocalProtocolError,
     LoginError,
-    MatrixRoom,
     MegolmEvent,
     RoomMessageText,
     UnknownEvent,
@@ -64,21 +63,9 @@ async def main():
     # Set up event callbacks
     callbacks = Callbacks(client, store, config)
     client.add_event_callback(callbacks.message, (RoomMessageText,))
-
-    def invite_event_filtered_callback(
-        room: MatrixRoom, event: InviteMemberEvent
-    ) -> None:
-        """
-        Since the InviteMemberEvent is fired for every m.room.member state received
-        in a sync response's `rooms.invite` section, we will receive some that are
-        not actually our own invite event (such as the inviter's membership).
-        This makes sure we only call `callbacks.invite` with our own invite events.
-        """
-        if event.state_key == client.user_id:
-            # This is our own membership (invite) event
-            callbacks.invite(room, event)
-
-    client.add_event_callback(invite_event_filtered_callback, (InviteMemberEvent,))
+    client.add_event_callback(
+        callbacks.invite_event_filtered_callback, (InviteMemberEvent,)
+    )
     client.add_event_callback(callbacks.decryption_failure, (MegolmEvent,))
     client.add_event_callback(callbacks.unknown, (UnknownEvent,))