diff --git a/backup_named_volumes.sh b/backup_named_volumes.sh
index 2e58f9e..27a16df 100644
--- a/backup_named_volumes.sh
+++ b/backup_named_volumes.sh
@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-WORKDIR="$(pwd)"
+WORKDIR="${1:-$(pwd)}"
 COMPOSE_FILE="${WORKDIR}/docker-compose.yml"
 
 if [[ ! -f "$COMPOSE_FILE" ]]; then