diff --git a/types/gh-pages/tsconfig.json b/types/gh-pages/tsconfig.json
index 900ffe8cdc..b3af10f940 100644
--- a/types/gh-pages/tsconfig.json
+++ b/types/gh-pages/tsconfig.json
@@ -5,6 +5,7 @@
             "es6"
         ],
         "noImplicitAny": true,
+        "noImplicitThis": true,
         "strictNullChecks": true,
         "strictFunctionTypes": true,
         "baseUrl": "../",