diff --git a/include/boost/predef/os/android.h b/include/boost/predef/os/android.h
index 00836e7..125dbde 100644
--- a/include/boost/predef/os/android.h
+++ b/include/boost/predef/os/android.h
@@ -5,8 +5,8 @@ Distributed under the Boost Software License, Version 1.0.
 http://www.boost.org/LICENSE_1_0.txt)
 */
 
-#ifndef BOOST_PREDEF_OS_ADROID_H
-#define BOOST_PREDEF_OS_ADROID_H
+#ifndef BOOST_PREDEF_OS_ANDROID_H
+#define BOOST_PREDEF_OS_ANDROID_H
 
 #include <boost/predef/version_number.h>
 #include <boost/predef/make.h>