diff --git a/cesetup/zip-win32.bat b/cesetup/zip-win32.bat
index 030dbb7a..16cffb21 100644
--- a/cesetup/zip-win32.bat
+++ b/cesetup/zip-win32.bat
@@ -1,4 +1,5 @@
 set /p ver=<version.txt
+set ver=%ver:_=%
 cd win32
 :: assuming 7zip binary folder is somewhere in PATH
 7z a -tzip -mx9^