diff --git a/CHANGELOG.md b/CHANGELOG.md
index 443af418..f6d1872e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Version 233:
+
+* Check __ANDROID__ instead
+
+--------------------------------------------------------------------------------
+
 Version 232:
 
 * Fix close_socket for net::basic_socket changes
diff --git a/include/boost/beast/core/impl/file_posix.ipp b/include/boost/beast/core/impl/file_posix.ipp
index 9b837d36..0f7f42ac 100644
--- a/include/boost/beast/core/impl/file_posix.ipp
+++ b/include/boost/beast/core/impl/file_posix.ipp
@@ -24,7 +24,7 @@
 #include <limits.h>
 
 #if ! defined(BOOST_BEAST_NO_POSIX_FADVISE)
-# if defined(__APPLE__) || (defined(ANDROID) && (__ANDROID_API__ < 21))
+# if defined(__APPLE__) || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
 #  define BOOST_BEAST_NO_POSIX_FADVISE
 # endif
 #endif