diff --git a/tns-platform-declarations/README.md b/tns-platform-declarations/README.md
index d58d7b104..001f58233 100644
--- a/tns-platform-declarations/README.md
+++ b/tns-platform-declarations/README.md
@@ -27,3 +27,5 @@ And add to a reference.d.ts:
 /// <reference path="./node_modules/tns-platform-declarations/ios.d.ts" />
 /// <reference path="./node_modules/tns-platform-declarations/android.d.ts" />
 ```
+
+d.ts files require a lot of memory and CPU. Consider adding skipLibCheck option to tsconfig file.