diff --git a/packages/pinus-admin/lib/protocol/mqtt/robustMqttClient.ts b/packages/pinus-admin/lib/protocol/mqtt/robustMqttClient.ts
index a0ffb22eb..1ce9d635c 100644
--- a/packages/pinus-admin/lib/protocol/mqtt/robustMqttClient.ts
+++ b/packages/pinus-admin/lib/protocol/mqtt/robustMqttClient.ts
@@ -12,7 +12,7 @@ import { MqttClient } from './mqttClient';
 let logger = getLogger('pinus-admin', path.basename(__filename));
 
 export class RobustMqttClient extends MqttClient {
-    
+
     connect(host ?: string, port ?: number, cb ?: Function) {
         super.connect(host, port, cb);
 
diff --git a/packages/pinus/lib/common/service/backendSessionService.ts b/packages/pinus/lib/common/service/backendSessionService.ts
index dd9424a4a..ad00ada62 100644
--- a/packages/pinus/lib/common/service/backendSessionService.ts
+++ b/packages/pinus/lib/common/service/backendSessionService.ts
@@ -324,11 +324,11 @@ export class BackendSession implements ISession {
         this.__sessionService__.pushAll(this.frontendId, this.id, this.settings, cb);
     }
 
-    abind(uid: string,) {
+    abind(uid: string) {
         return new Promise((resolve, reject) => this.bind(uid, (err, ret) => err ? reject(err) : resolve(ret as any)));
     }
 
-    aunbind(uid: string,) {
+    aunbind(uid: string) {
         return new Promise((resolve, reject) => this.unbind(uid, (err, ret) => err ? reject(err) : resolve(ret as any)));
     }
 
diff --git a/packages/pinus/lib/connectors/hybrid/switcher.ts b/packages/pinus/lib/connectors/hybrid/switcher.ts
index 20e14ea7c..2ee8f514f 100644
--- a/packages/pinus/lib/connectors/hybrid/switcher.ts
+++ b/packages/pinus/lib/connectors/hybrid/switcher.ts
@@ -24,7 +24,7 @@ let ST_CLOSED = 2;
 
 let DEFAULT_TIMEOUT = 90;
 
-export type SslWatcher = (cb:(opts: tls.SecureContextOptions) => void) => void;
+export type SslWatcher = (cb: (opts: tls.SecureContextOptions) => void) => void;
 export interface HybridSwitcherOptions {
     closeMethod ?: 'end';
     timeout ?: number;