diff --git a/mkosi.extra/root/sftpgo.sh b/mkosi.extra/root/sftpgo.sh
old mode 100644
new mode 100755
index ad8178b..607ff88
--- a/mkosi.extra/root/sftpgo.sh
+++ b/mkosi.extra/root/sftpgo.sh
@@ -1,17 +1,22 @@
 #!/usr/bin/bash
 source /etc/os-release
 
+set -euo pipefail
+
 export GO=/usr/bin/go
 if [[ $ID = "debian" ]]; then
 	export GO=/usr/lib/go-1.19/bin/go
 fi
 
-git clone https://github.com/drakkan/sftpgo sftpgo-src
+if [[ -d "sftpgo" ]]; then
+	git clone https://github.com/drakkan/sftpgo sftpgo-src
+fi
 cd sftpgo-src
+git pull origin HEAD
 git checkout $(git tag | tail -n 1)
 cp -r openapi ./internal/bundle/openapi
 cp -r templates ./internal/bundle/templates
 cp -r static ./internal/bundle/static
-$GO build -tags nogcs,nos3,noazblob,nobolt,nomysql,nopgsql,nosqlite,noportable,nometrics,bundle -o /usr/local/bin/sftpgo
-
+$GO build -tags nogcs,nos3,noazblob,nobolt,nomysql,nopgsql,nosqlite,noportable,nometrics,bundle -o sftpgo
+mv sftpgo /usr/local/bin/
 strip /usr/local/bin/sftpgo