Windows packaging fix
diff --git a/tools/make_windows_package.sh b/tools/make_windows_package.sh
index a859646..e08435f 100755
--- a/tools/make_windows_package.sh
+++ b/tools/make_windows_package.sh
@@ -41,4 +41,4 @@
     -exec sed -i 's/[^\r]$/\r/' '{}' \;
 
 # Zip it all up
-( cd dist; rm $VERSION.zip; powershell "Compress-Archive $VERSION $VERSION.zip" )
+( cd dist; rm -f $VERSION.zip; powershell "Compress-Archive $VERSION $VERSION.zip" )