diff --git a/mingw-w64-crt/misc/mb_wc_common.h b/mingw-w64-crt/misc/mb_wc_common.h
index da73a11..caccf2b 100644
--- a/mingw-w64-crt/misc/mb_wc_common.h
+++ b/mingw-w64-crt/misc/mb_wc_common.h
@@ -4,10 +4,11 @@
  * No warranty is given; refer to the file DISCLAIMER within this package.
  */
 
-__declspec(dllimport) unsigned int _lc_codepage;
+#undef __lc_codepage
+__declspec(dllimport) unsigned int __lc_codepage;
 
 static inline
 unsigned int get_codepage (void)
 {
-	return _lc_codepage;
+	return __lc_codepage;
 }