diff --git a/block/file-win32.c b/block/file-win32.c
index b00039bf94..b63ce1c189 100644
--- a/block/file-win32.c
+++ b/block/file-win32.c
@@ -872,7 +872,7 @@ static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
         } else {
             ret = -EINVAL;
         }
-        error_setg_errno(errp, -ret, "Could not open device");
+        error_setg_win32(errp, err, "Could not open device");
         goto done;
     }