1 files changed, 2 insertions, 2 deletions
diff --git a/otherlibs/win32unix/dup.c b/otherlibs/win32unix/dup.c
index 9a00cb762..15d20fd8e 100644
--- a/otherlibs/win32unix/dup.c
+++ b/otherlibs/win32unix/dup.c
@@ -15,13 +15,13 @@
 #include <mlvalues.h>
 #include "unixsupport.h"
 
-value unix_dup(value fd)               /* ML */
+CAMLprim value unix_dup(value fd)
 {
   HANDLE newh;
   if (! DuplicateHandle(GetCurrentProcess(), Handle_val(fd),
                         GetCurrentProcess(), &newh,
                         0L, TRUE, DUPLICATE_SAME_ACCESS)) {
-    _dosmaperr(GetLastError());
+    win32_maperr(GetLastError());
     return -1;
   }
   return win_alloc_handle(newh);