diff --git a/packages/node/src/transport/WsInboundTransport.ts b/packages/node/src/transport/WsInboundTransport.ts
index 77b335f913..fcdd980e33 100644
--- a/packages/node/src/transport/WsInboundTransport.ts
+++ b/packages/node/src/transport/WsInboundTransport.ts
@@ -96,7 +96,7 @@ export class WebSocketTransportSession implements TransportSession {
     }
     this.socket.send(JSON.stringify(encryptedMessage), (error?) => {
       if (error != undefined) {
-        this.logger.debug('Error sending message: ' + error )
+        this.logger.debug(`Error sending message: ${error}`)
         throw new AriesFrameworkError(`${this.type} send message failed.`, { cause: error })
       } else {
         this.logger.debug(`${this.type} sent message successfully.`)