diff --git a/prometheus/files/exporter/service b/prometheus/files/exporter/service
index 0f1eee3..f57d218 100644
--- a/prometheus/files/exporter/service
+++ b/prometheus/files/exporter/service
@@ -9,9 +9,7 @@ User={{ user }}
 Group={{ user }}
 Restart=on-failure
 ExecStart=/opt/prometheus/{{ exporter }}/bin/{{ svc_name }}
-{%- if svc_args is string %}
-{{ svc_args }}
-{%- else %}
+{%- if svc_args is string %}{{ svc_args }}{% else %}
 {%- for svc_arg in svc_args %}
 \
   {{ svc_arg }}