diff --git a/defaults/main.yml b/defaults/main.yml
index a11aa6d..5467edb 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -14,6 +14,7 @@ prometheus_mongodb_exporter_port: 27017
 
 prometheus_phpfpm_sockets_directory: "/run/php/"
 
+prometheus_postgres_exporter_systemd_user: "postgres"
 prometheus_postgres_exporter_host: "/var/run/postgresql/"
 prometheus_postgres_exporter_sslmode: "disable"
 prometheus_postgres_exporter_user: "postgres"
diff --git a/templates/systemd/prometheus-postgres-exporter.service.j2 b/templates/systemd/prometheus-postgres-exporter.service.j2
index 28c9092..354852a 100644
--- a/templates/systemd/prometheus-postgres-exporter.service.j2
+++ b/templates/systemd/prometheus-postgres-exporter.service.j2
@@ -4,7 +4,7 @@ After=network.target
 
 [Service]
 Type=simple
-User={{ prometheus_postgres_exporter_user }} 
+User={{ prometheus_postgres_exporter_systemd_user }} 
 ExecStart=/usr/local/bin/prometheus-postgres-exporter
 EnvironmentFile=/etc/default/prometheus-postgres-exporter