diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 20b53cf..b62c6fa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -52,6 +52,8 @@ To build the code use the command:
 npm run build
 ```
 
+This will create a `lib` folder, which will house the exported js and .d.ts files.
+
 ## Building docs
 
 To build the [typedoc](https://www.npmjs.com/package/typedoc) based doc site, use the command:
diff --git a/tsconfig.json b/tsconfig.json
index 47940fb..6703f24 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -8,5 +8,5 @@
   },
   "types": ["node"],
   "include": ["src"],
-  "exclude": ["node_modules", "**/__tests__/*"]
+  "exclude": ["node_modules", "**/*.spec.ts"]
 }