diff --git a/scripts/release-deb.sh b/scripts/release-deb.sh
index bd1b837..f3d64d0 100644
--- a/scripts/release-deb.sh
+++ b/scripts/release-deb.sh
@@ -5,8 +5,10 @@ set -xeu
 SCRIPT_PATH=$(realpath "$0")
 SCRIPT_DIR=$(dirname "$SCRIPT_PATH")
 
-DISTRO=$1
-DISTROVER=$2
+# E.g.: debian, ubuntu
+DISTRO=${DISTRO:1}
+# E.g.: bullseye, bookwork
+DISTROVER=${DISTROVER:2}
 CONTAINER_NAME="vdirsyncer-${DISTRO}-${DISTROVER}"
 CONTEXT="$(mktemp -d)"