diff --git a/src/middlewares/audio.ts b/src/middlewares/audio.ts
index afb9b45..d1e6368 100644
--- a/src/middlewares/audio.ts
+++ b/src/middlewares/audio.ts
@@ -101,8 +101,12 @@ export default function factory(): BotBuilder.IMiddlewareMap {
       }
 
       bingSpeechClient.synthesize(event.text)
-        .then(response => storage.upload(streamifier.createReadStream(response.wave)))
+        .then(response => {
+            logger.debug('Bing Speech synthesize succeeded');
+            return storage.upload(streamifier.createReadStream(response.wave));
+        })
         .then(url => {
+            logger.info({url: url}, 'Audio response uploaded');
             event.attachments = event.attachments || [];
             event.attachments.push({
                 contentType: 'audio/wave',
diff --git a/src/middlewares/directline-prompts.ts b/src/middlewares/directline-prompts.ts
index bd2c66c..b92b2d0 100644
--- a/src/middlewares/directline-prompts.ts
+++ b/src/middlewares/directline-prompts.ts
@@ -17,6 +17,7 @@
 
 import * as BotBuilder from 'botbuilder';
 import { Channel } from '../botbuilder-ext';
+import * as logger from 'logops';
 
 /**
  * Look for outgoing messages whose channel is DirectLine and carry some attachment whose contentType
@@ -34,11 +35,13 @@ export default {
                     // Pick the attachment with contentType 'application/vnd.microsoft.keyboard'
                     let choicesIndex = message.attachments
                         .findIndex(attachment => attachment.contentType === 'application/vnd.microsoft.keyboard');
+                    logger.debug('Found attachment of type Keyboard on index %d', choicesIndex);
                     if (choicesIndex !== -1) {
                         // Move the attachment containing the choices to the channelData
-                        let choices = message.attachments.splice(choicesIndex);
+                        let choices = message.attachments.splice(choicesIndex, 1);
                         message.sourceEvent = message.sourceEvent || {};
                         message.sourceEvent.choices = choices[0];
+                        logger.info('Keyboard moved from attachments to channelData');
                     }
                 }
             }