diff --git a/config.bat b/config.bat
index dfd7505d39d..7216c5ba017 100644
--- a/config.bat
+++ b/config.bat
@@ -129,7 +129,7 @@ rm -f paths.tmp
 
 rem   Create "config.h"
 rm -f config.h2 config.tmp
-cp config.in config.tmp
+sed -e '' config.in > config.tmp
 if "%X11%" == "" goto src4
 sed -f ../msdos/sed2x.inp <config.in >config.tmp
 :src4