diff --git a/src/discordas.ts b/src/discordas.ts
index 05887cf59cccfb3daf791a4d33f41236f485de80..ad328a2207d723fb4e115e66bcb45495b5e2dbda 100644
--- a/src/discordas.ts
+++ b/src/discordas.ts
@@ -101,7 +101,7 @@ async function run(port: number, fileConfig: DiscordBridgeConfig) {
                         return;
                     }
                     const roomId = request.getData().room_id;
-                    let context: BridgeContext = {
+                    const context: BridgeContext = {
                         rooms: {},
                     };
                     if (roomId) {