diff --git a/include/boost/config/select_platform_config.hpp b/include/boost/config/select_platform_config.hpp
index 974e5c50..5443f940 100644
--- a/include/boost/config/select_platform_config.hpp
+++ b/include/boost/config/select_platform_config.hpp
@@ -12,7 +12,7 @@
 // <header_name> in order to prevent macro expansion within the header
 // name (for example "linux" is a macro on linux systems).
 
-#if defined(linux) || defined(__linux)
+#if defined(linux) || defined(__linux) || defined(__linux__)
 // linux:
 #  define BOOST_PLATFORM_CONFIG "boost/config/platform/linux.hpp"