diff --git a/piet-gpu/bin/android.rs b/piet-gpu/bin/android.rs
index 968405e..75c7045 100644
--- a/piet-gpu/bin/android.rs
+++ b/piet-gpu/bin/android.rs
@@ -1,3 +1,4 @@
+#![cfg(target_os = "android")]
 //! Android example
 //!
 //! Run using `cargo apk run --example android`