diff --git a/packages/internal/src/types.d.ts b/packages/internal/src/types.d.ts
index bafd7627064..e4ddb18590f 100644
--- a/packages/internal/src/types.d.ts
+++ b/packages/internal/src/types.d.ts
@@ -20,5 +20,8 @@ export declare class SyncCallback<
 }
 
 declare global {
+  /**
+   * Utility for the type of an Exo object once prepared and instantiated.
+   */
   type ExoObj<T> = Awaited<ReturnType<Awaited<ReturnType<T>>>>;
 }