diff --git a/entrypoint.sh b/entrypoint.sh
index 59b7e24..60cbe1b 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -37,7 +37,7 @@ chmod 600  /var/lib/postgresql/.ssh/*
 
 docker_setup_env
 
-printf "%s:%s\n" "$PGPOOL_ADMIN_USERNAME" (pg_md5 "$PGPOOL_ADMIN_PASSWORD") > /etc/pgpool2/pcp.conf
+printf "%s:%s\n" "$PGPOOL_ADMIN_USERNAME" "(pg_md5 "$PGPOOL_ADMIN_PASSWORD)" > /etc/pgpool2/pcp.conf
 {
   printf "localhost:9898:%s:%s\n" "$PGPOOL_ADMIN_USERNAME" "$PGPOOL_ADMIN_PASSWORD"
   printf "pgpool:9898:%s:%s\n" "$PGPOOL_ADMIN_USERNAME" "$PGPOOL_ADMIN_PASSWORD"