diff --git a/cupcake-app/README.md b/cupcake-app/README.md
index 9ac37eb..054d874 100644
--- a/cupcake-app/README.md
+++ b/cupcake-app/README.md
@@ -24,3 +24,7 @@ Getting Started
 2. Download the sample.
 3. Import the sample into Android Studio.
 4. Build and run the sample.
+
+Build with
+
+- Kotlin