diff --git a/scripts/db/synology_db_backup.sh b/scripts/db/synology_db_backup.sh
index 914010c..9f0eb16 100755
--- a/scripts/db/synology_db_backup.sh
+++ b/scripts/db/synology_db_backup.sh
@@ -11,6 +11,7 @@ PG_DUMP_BIN="${PG_DUMP_BIN:-$(command -v pg_dump || true)}"
 PSQL_BIN="${PSQL_BIN:-$(command -v psql || true)}"
 DOCKER_BIN="${DOCKER_BIN:-$(command -v docker || true)}"
 COMPOSE_FILE="${COMPOSE_FILE:-${ROOT_DIR}/scripts/db/backup-client/docker-compose.yml}"
+DOCKER_CMD=()
 
 if [[ ! -f "${ENV_FILE}" ]]; then
   echo "Missing environment file: ${ENV_FILE}" >&2
@@ -38,6 +39,15 @@ if [[ ! -f "${COMPOSE_FILE}" ]]; then
   exit 1
 fi
 
+if "${DOCKER_BIN}" info >/dev/null 2>&1; then
+  DOCKER_CMD=("${DOCKER_BIN}")
+elif sudo -n "${DOCKER_BIN}" info >/dev/null 2>&1; then
+  DOCKER_CMD=(sudo -n "${DOCKER_BIN}")
+else
+  echo "Docker daemon is not accessible for this user." >&2
+  exit 1
+fi
+
 mkdir -p "${BACKUP_DIR}"
 timestamp="$(date +%Y%m%d_%H%M%S)"
 output_file="${BACKUP_DIR}/${FILE_PREFIX}_${DB_NAME}_${timestamp}.dump"
@@ -47,7 +57,7 @@ cleanup() { rm -f "${temporary_file}"; }
 trap cleanup EXIT
 
 export BACKUP_DIR
-"${DOCKER_BIN}" compose --file "${COMPOSE_FILE}" run --rm --no-deps -T backup
+"${DOCKER_CMD[@]}" compose --file "${COMPOSE_FILE}" run --rm --no-deps -T backup
 
 if [[ ! -s "${BACKUP_DIR}/current.dump" ]]; then
   echo "Backup failed: container dump file is empty." >&2