diff --git a/include/boost/python/detail/config.hpp b/include/boost/python/detail/config.hpp
index d420518d..3f2a19eb 100644
--- a/include/boost/python/detail/config.hpp
+++ b/include/boost/python/detail/config.hpp
@@ -74,7 +74,7 @@
 #    define BOOST_PYTHON_USE_GCC_SYMBOL_VISIBILITY 1
 #  endif 
 
-#  if defined(BOOST_PYTHON_USE_GCC_SYMBOL_VISIBILITY)
+#  if BOOST_PYTHON_USE_GCC_SYMBOL_VISIBILITY
 #     if defined(BOOST_PYTHON_SOURCE)
 #        define BOOST_PYTHON_DECL __attribute__ ((visibility("default")))
 #        define BOOST_PYTHON_BUILD_DLL
diff --git a/include/boost/python/module_init.hpp b/include/boost/python/module_init.hpp
index 64599a38..7770f531 100644
--- a/include/boost/python/module_init.hpp
+++ b/include/boost/python/module_init.hpp
@@ -42,7 +42,7 @@ extern "C"                                                              \
 }                                                                       \
 void init_module_##name()
 
-# elif (defined(__GNUC__) && __GNUC__ >= 3 && __GNUC_MINOR__ >=5)
+# elif BOOST_PYTHON_USE_GCC_SYMBOL_VISIBILITY
 
 #   define BOOST_PYTHON_MODULE_INIT(name)                               \
 void init_module_##name();                                              \