diff --git a/docs/widgets/services/prometheus.md b/docs/widgets/services/prometheus.md
index 02560c91f..beb04b5ef 100644
--- a/docs/widgets/services/prometheus.md
+++ b/docs/widgets/services/prometheus.md
@@ -5,7 +5,7 @@ description: Prometheus Widget Configuration
 
 Learn more about [Prometheus](https://github.com/prometheus/prometheus).
 
-Allowed fields: `["targets_up", "targets_down", "targets_total"]`
+Allowed fields: `["targets_up", "targets_down", "targets_total"]`.
 
 ```yaml
 widget: