diff --git a/include/boost/smart_ptr/bad_weak_ptr.hpp b/include/boost/smart_ptr/bad_weak_ptr.hpp
index e3e81f9..c21a2c5 100644
--- a/include/boost/smart_ptr/bad_weak_ptr.hpp
+++ b/include/boost/smart_ptr/bad_weak_ptr.hpp
@@ -47,7 +47,7 @@ class bad_weak_ptr: public std::exception
 {
 public:
 
-    virtual char const * what() const BOOST_NOEXCEPT_OR_NOTHROW
+    virtual char const * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
     {
         return "tr1::bad_weak_ptr";
     }
diff --git a/include/boost/smart_ptr/detail/local_counted_base.hpp b/include/boost/smart_ptr/detail/local_counted_base.hpp
index 405ef30..3914aa1 100644
--- a/include/boost/smart_ptr/detail/local_counted_base.hpp
+++ b/include/boost/smart_ptr/detail/local_counted_base.hpp
@@ -113,12 +113,12 @@ public:
 
 #endif
 
-    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT
+    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         delete this;
     }
 
-    virtual boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT
+    virtual boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return pn_;
     }
@@ -130,12 +130,12 @@ public:
 
     shared_count pn_;
 
-    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT
+    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         shared_count().swap( pn_ );
     }
 
-    virtual boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT
+    virtual boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return pn_;
     }