diff --git a/include/boost/detail/lwm_win32_cs.hpp b/include/boost/detail/lwm_win32_cs.hpp
index 4ee0a71..8142069 100644
--- a/include/boost/detail/lwm_win32_cs.hpp
+++ b/include/boost/detail/lwm_win32_cs.hpp
@@ -29,7 +29,7 @@ namespace detail
 
 #ifndef BOOST_USE_WINDOWS_H
 
-struct CRITICAL_SECTION
+struct critical_section
 {
     struct critical_section_debug * DebugInfo;
     long LockCount;
@@ -43,10 +43,14 @@ struct CRITICAL_SECTION
 #endif
 };
 
-extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(CRITICAL_SECTION *);
-extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(CRITICAL_SECTION *);
-extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(CRITICAL_SECTION *);
-extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(CRITICAL_SECTION *);
+extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(critical_section *);
+extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(critical_section *);
+extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(critical_section *);
+extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(critical_section *);
+
+#else
+
+typedef ::CRITICAL_SECTION critical_section;
 
 #endif // #ifndef BOOST_USE_WINDOWS_H
 
@@ -54,7 +58,7 @@ class lightweight_mutex
 {
 private:
 
-    CRITICAL_SECTION cs_;
+    critical_section cs_;
 
     lightweight_mutex(lightweight_mutex const &);
     lightweight_mutex & operator=(lightweight_mutex const &);