diff --git a/back/src/db/index.ts b/back/src/db/index.ts
index a2be23a..0b8a10f 100644
--- a/back/src/db/index.ts
+++ b/back/src/db/index.ts
@@ -4,6 +4,8 @@ import fs from "fs";
 import { Room } from "./model";
 import { config } from "./config";
 
+export { Room };
+
 export const connect = () =>
   createConnection({
     ...config,
@@ -17,8 +19,11 @@ export const connect = () =>
     entities: [Room],
   });
 
-export const getRoomList = (connection: Connection) => {
-  return connection.manager.find(Room);
-};
+export const getRoomList = (connection: Connection) =>
+  connection.manager.find(Room);
 
-export { Room };
+export const updateFree = (
+  connection: Connection,
+  id: number,
+  value: boolean
+) => connection.manager.update(Room, id, { free: value });
diff --git a/back/src/index.ts b/back/src/index.ts
index 1bed51b..5f56f33 100644
--- a/back/src/index.ts
+++ b/back/src/index.ts
@@ -1,6 +1,6 @@
 import "reflect-metadata";
 import { Server } from "ws";
-import { connect, getRoomList } from "./db";
+import { connect, getRoomList, updateFree } from "./db";
 import { isIdMessage, isMessage } from "./types";
 
 (async () => {
@@ -18,7 +18,7 @@ import { isIdMessage, isMessage } from "./types";
       if (!isMessage(message)) throw new Error("Message corrupted");
 
       if (isIdMessage(message))
-        updateFree(message.args.id, message.type === "freed");
+        updateFree(connection, message.args.id, message.type === "freed");
     });
   });
 })();