diff --git a/templates/systemd/prometheus-mongodb-exporter.service.j2 b/templates/systemd/prometheus-mongodb-exporter.service.j2
index ea78bae..c7dae3d 100644
--- a/templates/systemd/prometheus-mongodb-exporter.service.j2
+++ b/templates/systemd/prometheus-mongodb-exporter.service.j2
@@ -4,7 +4,7 @@ After=network.target
 
 [Service]
 Type=simple
-ExecStart=/usr/local/bin/prometheus-mongodb-exporter
+ExecStart=/usr/local/bin/prometheus-mongodb-exporter --compatible-mode
 EnvironmentFile=/etc/default/prometheus-mongodb-exporter
 
 [Install]