diff --git a/inventory/group_vars/all b/inventory/group_vars/all
index bd90929..e9d0dbc 100644
--- a/inventory/group_vars/all
+++ b/inventory/group_vars/all
@@ -18,7 +18,7 @@ prometheus_groups:
   - ffmwu-gateways
   - ffmwu-monitoring
 
-node_exporter_opts: "--web.listen-address=localhost:9100 --collector.systemd"
+node_exporter_opts: "--collector.systemd"
 
 http_domain_internal: ffmwu.org
 http_domain_external: freifunk-mwu.de
diff --git a/inventory/group_vars/ffmwu-monitoring b/inventory/group_vars/ffmwu-monitoring
index 018c104..a263364 100644
--- a/inventory/group_vars/ffmwu-monitoring
+++ b/inventory/group_vars/ffmwu-monitoring
@@ -13,7 +13,6 @@ http_grafana_prefix: stats
 http_lookingglass_prefix: lg
 
 prometheus_conf_main: prometheus/prometheus.yml.j2
-prometheus_opts: "--web.listen-address=localhost:9090"
 
 prometheus_components:
   - prometheus
diff --git a/roles/service-prometheus/defaults/main.yml b/roles/service-prometheus/defaults/main.yml
index 38e2ef7..3cf2984 100644
--- a/roles/service-prometheus/defaults/main.yml
+++ b/roles/service-prometheus/defaults/main.yml
@@ -27,5 +27,6 @@ prometheus_workdir: "{{ prometheus_download_path }}/prometheus_workdir"
 prometheus_goroot: "{{ prometheus_workdir }}/go"
 prometheus_gopath: "{{ prometheus_workdir }}/gopath"
 
-prometheus_default_opts: "--config.file={{ prometheus_config_path }}/prometheus.yml --storage.tsdb.path={{ prometheus_db_path }}"
+prometheus_default_opts: "--web.listen-address=localhost:9090 --config.file={{ prometheus_config_path }}/prometheus.yml --storage.tsdb.path={{ prometheus_db_path }}"
 alertmanager_default_opts: "--config.file={{ prometheus_config_path }}/alertmanager.yml --storage.path={{ alertmanager_db_path }}"
+node_exporter_default_opts: "--web.listen-address=localhost:9100"