diff --git a/packages/core.gbapp/services/GBConversationalService.ts b/packages/core.gbapp/services/GBConversationalService.ts
index e347566d..50881551 100644
--- a/packages/core.gbapp/services/GBConversationalService.ts
+++ b/packages/core.gbapp/services/GBConversationalService.ts
@@ -302,7 +302,7 @@ export class GBConversationalService {
 
         const textToSpeech = new TextToSpeechV1({
           authenticator: new IamAuthenticator({ apikey: process.env.WATSON_TTS_KEY }),
-          url: process.env.WATSON_STT_URL
+          url: process.env.WATSON_TTS_URL
         });
 
         const params = {