diff --git a/include/boost/numeric/ublas/matrix_proxy.hpp b/include/boost/numeric/ublas/matrix_proxy.hpp
index ba32a811..f98dcab2 100644
--- a/include/boost/numeric/ublas/matrix_proxy.hpp
+++ b/include/boost/numeric/ublas/matrix_proxy.hpp
@@ -1519,7 +1519,9 @@ namespace boost { namespace numeric { namespace ublas {
             return reverse_iterator (begin ());
         }
 
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
+#endif
         matrix_closure_type data_;
         range r1_;
         range r2_;
@@ -2018,7 +2020,9 @@ namespace boost { namespace numeric { namespace ublas {
             return reverse_iterator (begin ());
         }
 
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
+#endif
         matrix_closure_type data_;
         slice s1_;
         slice s2_;
@@ -2518,7 +2522,9 @@ namespace boost { namespace numeric { namespace ublas {
             return reverse_iterator (begin ());
         }
 
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
+#endif
         matrix_closure_type data_;
         indirect_array_type ia1_;
         indirect_array_type ia2_;
@@ -4356,7 +4362,9 @@ namespace boost { namespace numeric { namespace ublas {
             return reverse_iterator2 (begin2 ());
         }
 
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
+#endif
         matrix_closure_type data_;
         slice s1_;
         slice s2_;
@@ -5294,7 +5302,9 @@ namespace boost { namespace numeric { namespace ublas {
             return reverse_iterator2 (begin2 ());
         }
 
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
+#endif
         matrix_closure_type data_;
         indirect_array_type ia1_;
         indirect_array_type ia2_;
diff --git a/include/boost/numeric/ublas/vector_proxy.hpp b/include/boost/numeric/ublas/vector_proxy.hpp
index c5cea892..a6c390f6 100644
--- a/include/boost/numeric/ublas/vector_proxy.hpp
+++ b/include/boost/numeric/ublas/vector_proxy.hpp
@@ -1053,8 +1053,7 @@ return true;
             return reverse_iterator (begin ());
         }
 
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-// VC++ 6.0 cannot access data_ from iterator
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
 #endif
         vector_closure_type data_;
@@ -1598,8 +1597,7 @@ return true;
             return reverse_iterator (begin ());
         }
 
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-// VC++ 6.0 cannot access data_ from iterator
+#ifndef BOOST_UBLAS_NESTED_CLASS_DR45
     private:
 #endif
         vector_closure_type data_;