diff --git a/include/boost/optional/detail/optional_config.hpp b/include/boost/optional/detail/optional_config.hpp
index bc6f32f6..bb7e12f9 100644
--- a/include/boost/optional/detail/optional_config.hpp
+++ b/include/boost/optional/detail/optional_config.hpp
@@ -127,8 +127,8 @@
 #endif
 
 
-#ifdef BOOST_OPTIONAL_CONFIG_NO_DIRECT_STORAE_SPEC
-# define BOOST_OPTIONAL_DETAIL_NO_DIRECT_STORAE_SPEC
+#ifdef BOOST_OPTIONAL_CONFIG_NO_DIRECT_STORAGE_SPEC
+# define BOOST_OPTIONAL_DETAIL_NO_DIRECT_STORAGE_SPEC
 #endif
 
 
diff --git a/include/boost/optional/optional.hpp b/include/boost/optional/optional.hpp
index 835dc1dc..c0f10e1d 100644
--- a/include/boost/optional/optional.hpp
+++ b/include/boost/optional/optional.hpp
@@ -816,7 +816,7 @@ struct optional_uses_direct_storage_for
 } // namespace optional_config
 
 
-#ifndef BOOST_OPTIONAL_DETAIL_NO_DIRECT_STORAE_SPEC
+#ifndef BOOST_OPTIONAL_DETAIL_NO_DIRECT_STORAGE_SPEC
 #  define BOOST_OPTIONAL_BASE_TYPE(T) boost::conditional< optional_config::optional_uses_direct_storage_for<T>::value, \
                                       optional_detail::tc_optional_base<T>, \
                                       optional_detail::optional_base<T> \