diff --git a/boost/type_index/type_index.hpp b/boost/type_index/type_index.hpp
index 7ce724b..3a92198 100644
--- a/boost/type_index/type_index.hpp
+++ b/boost/type_index/type_index.hpp
@@ -19,8 +19,8 @@
 /// boost::type_index class is used in situations when RTTI is enabled, it is designed to be a drop-in
 /// replacement for C++11 std::type_index class.
 ///
-/// When RTTI is disabled boost::template_index will be used instead of
-/// this class.
+/// When RTTI is disabled boost::template_index will be usually (some compilers allow calling typeid(T)
+/// even if RTTI is disabled) used instead of this class.  
 
 #include <boost/config.hpp>
 #include <boost/type_index/type_info.hpp>
diff --git a/boost/type_index/type_info.hpp b/boost/type_index/type_info.hpp
index aaedaf8..ab7fe5a 100644
--- a/boost/type_index/type_info.hpp
+++ b/boost/type_index/type_info.hpp
@@ -22,7 +22,8 @@
 ///
 /// boost::type_info class is used in situations when RTTI is enabled.
 /// When RTTI is disabled or BOOST_TYPE_INDEX_FORCE_NORTTI_COMPATIBILITY macro is defined boost::template_info
-/// is usually used instead of it.
+/// is usually used instead of it (some compilers allow calling typeid(T)
+/// even if RTTI is disabled, those copilers will continue to use boost::type_info class).
 
 #include <boost/config.hpp>