diff --git a/tsconfig.json b/tsconfig.json
index f3d55442..5f08534e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,4 +1,5 @@
 {
+  "include": ["app"],
   "compilerOptions": {
     "target": "es6",
     "module": "es2015",