diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index 5096f82..78316bf 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -613,6 +613,7 @@ const synthElevenlabs = async(logger, {credentials, options, stats, language, vo
     params += `{api_key=${api_key}`;
     params += `,model_id=${model_id}`;
     params += `,optimize_streaming_latency=${opts.optimize_streaming_latency || 2}`;
+    params += ',write_cache_file=1';
     if (opts.voice_settings?.similarity_boost) params += `,similarity_boost=${opts.voice_settings.similarity_boost}`;
     if (opts.voice_settings?.stability) params += `,stability=${opts.voice_settings.stability}`;
     if (opts.voice_settings?.style) params += `,style=${opts.voice_settings.style}`;