diff --git a/include/__bit_reference b/include/__bit_reference
index 22cf095..37b7923 100644
--- a/include/__bit_reference
+++ b/include/__bit_reference
@@ -40,7 +40,7 @@
     __storage_pointer __seg_;
     __storage_type    __mask_;
 
-#if defined(__clang__) || defined(__IBMCPP__)
+#if defined(__clang__) || defined(__IBMCPP__) || defined(_LIBCPP_MSVC)
     friend typename _Cp::__self;
 #else
     friend class _Cp::__self;
@@ -130,7 +130,7 @@
     __storage_pointer        __seg_;
     __storage_type __mask_;
 
-#if defined(__clang__) || defined(__IBMCPP__)
+#if defined(__clang__) || defined(__IBMCPP__) || defined(_LIBCPP_MSVC)
     friend typename _Cp::__self;
 #else
     friend class _Cp::__self;
@@ -1222,7 +1222,7 @@
     __bit_iterator(__storage_pointer __s, unsigned __ctz) _NOEXCEPT
         : __seg_(__s), __ctz_(__ctz) {}
 
-#if defined(__clang__) || defined(__IBMCPP__)
+#if defined(__clang__) || defined(__IBMCPP__) || defined(_LIBCPP_MSVC)
     friend typename _Cp::__self;
 #else
     friend class _Cp::__self;