diff --git a/manifests/main/files.pp b/manifests/main/files.pp
index 7a1185d..4a040e8 100644
--- a/manifests/main/files.pp
+++ b/manifests/main/files.pp
@@ -16,6 +16,6 @@ class prometheus_cd::main::files (
     seltype  => etc_t,
     seluser  => system_u,
     content  => template('prometheus_cd/prometheus.yml.erb'),
-    notify   => Service[ps_prom_service],
+    notify   => Service[$ps_prom_service],
   }
 }