diff --git a/ui/src/components/door_map/DoorPlacer.vue b/ui/src/components/door_map/DoorPlacer.vue
index 59216f7..b7fe8f3 100644
--- a/ui/src/components/door_map/DoorPlacer.vue
+++ b/ui/src/components/door_map/DoorPlacer.vue
@@ -38,11 +38,11 @@ export default class extends Vue {
   private doors!: Door[];
 
   private get rectangles() {
-    return this.doors.filter((door) => door.position);
+    return this.doors.map((door) => door.position);
   }
 
   private on_draw(position: Rectangle) {
-    this.doors.push(new Door(position));
+    this.doors.push({ position: position });
   }
 
   private find_door_index(position: Rectangle): number {
diff --git a/ui/src/components/door_map/calendar.ts b/ui/src/components/door_map/calendar.ts
index 4e5f2e3..f51b309 100644
--- a/ui/src/components/door_map/calendar.ts
+++ b/ui/src/components/door_map/calendar.ts
@@ -1,11 +1,6 @@
 import { Rectangle } from "../rects/rectangles";
 
-export class Door {
-  public day?: number;
-  public position: Rectangle;
-
-  constructor(position: Rectangle, day?: number) {
-    this.position = position;
-    this.day = day;
-  }
+export interface Door {
+  day?: number;
+  position: Rectangle;
 }
\ No newline at end of file