diff --git a/src/provisioner.ts b/src/provisioner.ts
index 849ae85e99d0464a3fa92a9c8c87b333cd42c61e..7dd965181edfb7344d4aa59a917a8365b8ba6c4e 100644
--- a/src/provisioner.ts
+++ b/src/provisioner.ts
@@ -30,7 +30,7 @@ export class Provisioner {
     }
 
     public unbridgeRoom(remoteRoom: RemoteRoom) {
-        return this.bridge.getRoomStore().removeEntriesByRemoteRoomId(remoteRoom);
+        return this.bridge.getRoomStore().removeEntriesByRemoteRoomId(remoteRoom.getId());
     }
 
     public askBridgePermission(channel: Discord.TextChannel, requestor: string): Promise<any> {