diff --git a/.ci-forgejo-apt.sh b/.ci-forgejo-apt.sh
index 7876e28..117e412 100755
--- a/.ci-forgejo-apt.sh
+++ b/.ci-forgejo-apt.sh
@@ -3,6 +3,6 @@
 EXIT_TOTAL=0
 for deb in "$@" ; do
 	curl -X PUT -H "Authorization: token $FORGEJO_KEY" -T "$deb" $FORGEJO_SITE/api/packages/$FORGEJO_OWNER/debian/pool/$DEBIAN_DIST/$DEBIAN_COMPONENT/upload
-	let EXIT_TOTAL=$EXIT_TOTAL+$?
+	EXIT_TOTAL=$(($EXIT_TOTAL+$?))
 done
 exit $EXIT_TOTAL