diff --git a/lib/utils.js b/lib/utils.js
index 721968a..620f469 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -47,7 +47,7 @@ function getFileExtension({vendor, renderForCaching = false}) {
       }
     case 'deepgram':
     case 'elevenlabs':
-    case 'rimlabs':
+    case 'rimelabs':
     case 'playht':
       if (renderForCaching || JAMBONES_DISABLE_TTS_STREAMING) {
         return mp3Extension;