diff --git a/include/boost/intrusive/rbtree_algorithms.hpp b/include/boost/intrusive/rbtree_algorithms.hpp
index a470a5d..5458e4f 100644
--- a/include/boost/intrusive/rbtree_algorithms.hpp
+++ b/include/boost/intrusive/rbtree_algorithms.hpp
@@ -57,10 +57,6 @@
 #include <boost/intrusive/detail/utilities.hpp>
 #include <boost/intrusive/detail/tree_algorithms.hpp>
 
-#if (defined _MSC_VER) && (_MSC_VER >= 1200)
-#pragma optimize( "g", off )
-#endif
-
 namespace boost {
 namespace intrusive {
 
@@ -908,10 +904,6 @@ class rbtree_algorithms
 } //namespace intrusive 
 } //namespace boost 
 
-#if (defined _MSC_VER) && (_MSC_VER >= 1200)
-#pragma optimize( "", on )
-#endif
-
 #include <boost/intrusive/detail/config_end.hpp>
 
 #endif //BOOST_INTRUSIVE_RBTREE_ALGORITHMS_HPP