diff --git a/packages/foundation-models/README.md b/packages/foundation-models/README.md
index b5e29707e..473e6fb54 100644
--- a/packages/foundation-models/README.md
+++ b/packages/foundation-models/README.md
@@ -280,7 +280,7 @@ To disable caching, set the `useCache` parameter to `false` together with the `d
 We are continously updating the OpenAI API version to match the latest version.
 In case this behavior causes issues in your application, you can overwrite the API version.
 
-To do this, set the `api-version` parameter in a `CustomRequestConfig` object, like the following:
+To do this, set the `api-version` parameter in the `CustomRequestConfig` object, like the following:
 
 ```ts
 const client = await new AzureOpenAiChatClient('gpt-35-turbo', {