diff --git a/fern/customization/custom-voices/cartesia.mdx b/fern/customization/custom-voices/cartesia.mdx
index 369df8498..90034880c 100644
--- a/fern/customization/custom-voices/cartesia.mdx
+++ b/fern/customization/custom-voices/cartesia.mdx
@@ -11,7 +11,7 @@ This guide shows you how to use a voice you created with Cartesia in your Vapi a
 
 <Steps>
   <Step title="Create a Cartesia account and voice">
-    Sign up at [Cartesia](https://play.cartesia.ai), then create a custom voice in the [Cartesia playground](https://play.cartesia.ai/voices). 
+    Sign up at [Cartesia](https://play.cartesia.ai), then create a custom voice in the [Cartesia playground](https://play.cartesia.ai/voices). Note that you will need to set the access of the voice to public in Cartesia to use it in Vapi. [Check their docs](https://docs.cartesia.ai/build-with-cartesia/capability-guides/choosing-a-voice#sharing-a-voice) for more information.
   </Step>
   <Step title="Retrieve your Cartesia API key">
     Get your API key from your Cartesia account.