diff --git a/include/msvcrt/sys/types.h b/include/msvcrt/sys/types.h
index 6cec7d7a8c7..5ca2e7c9ca4 100644
--- a/include/msvcrt/sys/types.h
+++ b/include/msvcrt/sys/types.h
@@ -15,7 +15,7 @@
 #endif
 
 
-typedef unsigned short _dev_t;
+typedef unsigned int   _dev_t;
 typedef unsigned short _ino_t;
 typedef int            _off_t;
 typedef long           MSVCRT(time_t);