diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index 6197e2b..b4782c9 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -316,6 +316,7 @@ const synthPolly = async(createHash, retrieveHash, logger,
     params += `,playback_id=${key}`;
     params += `,write_cache_file=${disableTtsCache ? 0 : 1}`;
     params += ',vendor=aws';
+    params += `,voice=${voice}`;
     if (accessKeyId && secretAccessKey) {
       if (accessKeyId) params += `,accessKeyId=${accessKeyId}`;
       if (secretAccessKey) params += `,secretAccessKey=${secretAccessKey}`;
diff --git a/package.json b/package.json
index 65c2f34..94e8360 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jambonz/speech-utils",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "TTS-related speech utilities for jambonz",
   "main": "index.js",
   "author": "Dave Horton",