diff --git a/libc/include/android/api-level.h b/libc/include/android/api-level.h
index c83c18d..7e3aa99 100644
--- a/libc/include/android/api-level.h
+++ b/libc/include/android/api-level.h
@@ -41,6 +41,8 @@
 
 #ifndef __ANDROID_API__
 #define __ANDROID_API__ __ANDROID_API_FUTURE__
+#else
+#define __ANDROID_NDK__ 1
 #endif
 
 #define __ANDROID_API_G__ 9