diff --git a/src/controllers/room_number.ts b/src/controllers/room_number.ts
index 01f6bba..151ea7d 100644
--- a/src/controllers/room_number.ts
+++ b/src/controllers/room_number.ts
@@ -7,7 +7,6 @@ import CommonHelper from "../helpers/common";
 import { ReturnHelper } from "../helpers/express/return";
 import { Language } from "../langs/lang";
 import { RoomNumberModel } from "../model/room_number";
-import { DepartmentModel } from "../model/department";
 import { OrmHelper } from "../helpers/orm";
 import moment from "moment";
 
@@ -54,7 +53,6 @@ export class RoomNumberController {
 			const offset = (param.page - 1) * param.limit;
 			const res_count = query;
 			const res_list = query
-				.leftJoinAndSelect("RoomNumber.department", "department")
 				.orderBy("RoomNumber." + param.order_field, param.order_direction)
 				.offset(offset)
 				.limit(param.limit);
@@ -88,7 +86,6 @@ export class RoomNumberController {
 		try {
 			const schema = Joi.object().keys({
 				number: Joi.string().max(256).required().label("Room Number"),
-				department_id: Joi.string().uuid().required().label("Department ID"),
 			});
 
 			let param: any = await schema.validateAsync(req.body);
@@ -96,12 +93,8 @@ export class RoomNumberController {
 			let exist = await RoomNumberModel.list({ number: param.number }).then((q) => q.getOne());
 			if (exist) throw { message: "Room Number " + Language.lang.failed_duplicate };
 
-			let department = await DepartmentModel.list({ id: param.department_id }).then((q) => q.getOne());
-			if (!department) throw { message: "Department not found" };
-
 			let roomNumber = new RoomNumber();
 			roomNumber.number = param.number;
-			roomNumber.department = department;
 			roomNumber.created_by = req.auth?.data.name;
 			roomNumber.updated_by = req.auth?.data.name;
 			await queryRunner.manager.save(roomNumber);
@@ -129,7 +122,7 @@ export class RoomNumberController {
 				id: Joi.string().uuid().required().label("Room Number Id"),
 			});
 			let param: any = await schema.validateAsync(req.params);
-			let roomNumber = await RoomNumberModel.list({ "RoomNumber.id": param.id }).then((q) => q.leftJoinAndSelect("RoomNumber.department", "department").getOne());
+			let roomNumber = await RoomNumberModel.list({ "RoomNumber.id": param.id }).then((q) => q.getOne());
 			if (!roomNumber) throw { message: "Room Number Not Found" };
 			return ReturnHelper.successResponseAny(res, 200, Language.lang.success_view, roomNumber);
 		} catch (e: unknown) {
@@ -153,21 +146,16 @@ export class RoomNumberController {
 			const schema = Joi.object().keys({
 				id: Joi.string().uuid().required().label("ID"),
 				number: Joi.string().max(256).required().label("Room Number"),
-				department_id: Joi.string().uuid().required().label("Department ID"),
 			});
 			let param: any = await schema.validateAsync(req.body);
 
 			let exist = await RoomNumberModel.list({ number: param.number }).then((q) => q.getOne());
 			if (exist && exist.id != param.id) throw { message: "Room Number " + Language.lang.failed_duplicate };
 
-			let department = await DepartmentModel.list({ id: param.department_id }).then((q) => q.getOne());
-			if (!department) throw { message: "Department not found" };
-
 			let roomNumber = await RoomNumberModel.list({ "RoomNumber.id": param.id }).then((q) => q.getOne());
 			if (!roomNumber) throw { message: "Room Number " + Language.lang.failed_not_found };
 
 			roomNumber.number = param.number;
-			roomNumber.department = department;
 			roomNumber.updated_by = req.auth?.data.name;
 			await queryRunner.manager.save(roomNumber);
 
diff --git a/src/swagger/builder.js b/src/swagger/builder.js
index e365542..30d1e59 100644
--- a/src/swagger/builder.js
+++ b/src/swagger/builder.js
@@ -140,7 +140,6 @@ const doc = {
       },
       room_number: {
         $number: "101",
-        $department_id: "uuid-string",
       },
       laboratory: {
         $room: "Room name",