diff --git a/packages/react/src/internal/usePrefix.mdx b/packages/react/src/internal/usePrefix.mdx
index ea76ad230e77..26c622844930 100644
--- a/packages/react/src/internal/usePrefix.mdx
+++ b/packages/react/src/internal/usePrefix.mdx
@@ -6,7 +6,7 @@ import { usePrefix } from './usePrefix';
 
 # usePrefix
 
-[Source code](https://github.com/carbon-design-system/carbon/blob/main/packages/react/src/internal/usePrefix.js)
+[Source code](https://github.com/carbon-design-system/carbon/blob/main/packages/react/src/internal/usePrefix.ts)
 
 ## Overview