diff --git a/front/src/store/models/model.ts b/front/src/store/models/model.ts
index 8903d80..9741482 100644
--- a/front/src/store/models/model.ts
+++ b/front/src/store/models/model.ts
@@ -33,6 +33,7 @@ export interface Room {
     members: Address[];
     notSeen: number;
     threadIds: number[];
+    parent_id?: number;
 }
 
 export interface Account {
diff --git a/front/src/store/store.ts b/front/src/store/store.ts
index 032b105..eb79e9c 100644
--- a/front/src/store/store.ts
+++ b/front/src/store/store.ts
@@ -32,6 +32,7 @@ function createRoom(options: RoomFromBack): Room {
         user: options.user,
         notSeen: options.notSeen,
         threadIds: [],
+        parent_id: options.parent_id,
     };
 }
 
@@ -133,9 +134,19 @@ const store = createStore<State>({
             });
         },
         removeRoom(state, payload) {
+            console.log(payload);
             const roomMessageIndex = state.roomMessages.findIndex((roomM) => roomM.roomId === payload.roomId);
             state.roomMessages.splice(roomMessageIndex, 1);
             const roomIndex = state.rooms.findIndex((room) => room.id === payload.roomId);
+            const roomToDelete = state.rooms[roomIndex];
+            // todo debug parent_id to root_id
+            // remove thread
+            if (roomToDelete.roomType === RoomType.THREAD && roomToDelete.parent_id) {
+                const parentRoom = roomOnId(state, roomToDelete.parent_id);
+                if (parentRoom) {
+                    parentRoom.threadIds = parentRoom?.threadIds.filter((id) => id !== roomToDelete.id);
+                }
+            }
             state.rooms.splice(roomIndex, 1);
             // state.activeRoom = state.rooms[0].id;
             // router.push(`/${state.activeRoom}`);