diff --git a/roles/matrix-dendrite/templates/dendrite/usr-local-bin/matrix-dendrite-create-account.j2 b/roles/matrix-dendrite/templates/dendrite/usr-local-bin/matrix-dendrite-create-account.j2
index d9572ac7b..5332b964d 100644
--- a/roles/matrix-dendrite/templates/dendrite/usr-local-bin/matrix-dendrite-create-account.j2
+++ b/roles/matrix-dendrite/templates/dendrite/usr-local-bin/matrix-dendrite-create-account.j2
@@ -9,4 +9,4 @@ fi
 user=$1
 password=$2
 
-docker exec matrix-dendrite create-account --config /data/dendrite.yaml --user "$user" --password "$password"
+docker exec matrix-dendrite create-account -config /data/dendrite.yaml -username "$user" -password "$password"