diff --git a/full-rebuild.sh b/full-rebuild.sh
index 48bf950..3833fc0 100755
--- a/full-rebuild.sh
+++ b/full-rebuild.sh
@@ -11,7 +11,7 @@ fi
 
 set -e
 
-rm -f ${OUTPUT}
+#rm -f ${OUTPUT}
 ./cleanup.sh
 for d in ${ORIG} ${OUTPUT} ${DISK} ; do
     mkdir -p $(dirname $d)