diff --git a/scripts/purge_user.sh b/scripts/purge_user.sh
index 07d4a354..926d861d 100755
--- a/scripts/purge_user.sh
+++ b/scripts/purge_user.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # get id of running admin container
-admin="$(docker compose ps admin --format=json | jq -r '.[].ID')"
+admin="$(docker compose ps admin --format=json | jq -r '.ID')"
 if [[ -z "${admin}" ]]; then
 	echo "Sorry, can't find running mailu admin container."
 	echo "You need to start this in the path containing your docker-compose.yml."
diff --git a/towncrier/newsfragments/3238.bugfix b/towncrier/newsfragments/3238.bugfix
new file mode 100644
index 00000000..adfa975a
--- /dev/null
+++ b/towncrier/newsfragments/3238.bugfix
@@ -0,0 +1 @@
+Fix purge_user.sh