diff --git a/libc/include/sys/select.h b/libc/include/sys/select.h
index df118e3..40bd32e 100644
--- a/libc/include/sys/select.h
+++ b/libc/include/sys/select.h
@@ -62,7 +62,7 @@
 void __FD_SET_chk(int, fd_set*, size_t) __INTRODUCED_IN(21);
 int __FD_ISSET_chk(int, fd_set*, size_t) __INTRODUCED_IN(21);
 
-#if defined(__BIONIC_FORTIFY) && __ANDROID_API__ >= 21
+#if defined(__BIONIC_FORTIFY) && __ANDROID_API__ >= __ANDROID_API_L__
 #define FD_CLR(fd, set) __FD_CLR_chk(fd, set, __bos(set))
 #define FD_SET(fd, set) __FD_SET_chk(fd, set, __bos(set))
 #define FD_ISSET(fd, set) __FD_ISSET_chk(fd, set, __bos(set))