diff --git a/tsconfig.webpack.json b/tsconfig.webpack.json
index d8dea8ac..437cc8fd 100644
--- a/tsconfig.webpack.json
+++ b/tsconfig.webpack.json
@@ -11,6 +11,7 @@
     "noEmitHelpers": true,
     "strictNullChecks": false,
     "baseUrl": "./src",
+    "typeRoots": [ "./node_modules/@types" ],
     "paths": {
     },
     "lib": [