diff --git a/lib/tasks/transcribe.js b/lib/tasks/transcribe.js
index 0be6e675..4a72a781 100644
--- a/lib/tasks/transcribe.js
+++ b/lib/tasks/transcribe.js
@@ -338,7 +338,7 @@ class TaskTranscribe extends SttTask {
 
     let emptyTranscript = false;
     if (evt.is_final) {
-      if (evt.alternatives[0].transcript === '' && !cs.callGone && !this.killed) {
+      if (evt.alternatives.length === 0 || evt.alternatives[0].transcript === '' && !cs.callGone && !this.killed) {
         emptyTranscript = true;
         if (finished === 'true' &&
           ['microsoft', 'deepgram'].includes(this.vendor) &&