diff --git a/src/services/shims.ts b/src/services/shims.ts
index 64759fffc9f..86671009be2 100644
--- a/src/services/shims.ts
+++ b/src/services/shims.ts
@@ -913,6 +913,8 @@ module ts {
         }
     }
 
+    // Here we expose the TypeScript services as an external module
+    // so that it may be consumed easily like a node module.
     declare var module: any;
     if (typeof module !== "undefined" && module.exports) {
         module.exports = ts;