1 files changed, 1 insertions, 0 deletions

diff --git a/build.sh b/build.sh
index 0282a4e..a047852 100755
--- a/build.sh
+++ b/build.sh
@@ -2,6 +2,7 @@
 
 set -eu
 
+rm -f router.img router.img.gz installer.img
 vmdebootstrap --config router.conf
 gzip router.img
 vmdebootstrap --config installer.conf