diff --git a/doc/observability/metrics.md b/doc/observability/metrics.md
index e89ba2794..947972ef8 100644
--- a/doc/observability/metrics.md
+++ b/doc/observability/metrics.md
@@ -139,4 +139,4 @@ The 2 parts are joined together using vector matching.
 * `on()` specifies which labels to "join" the 2 results with
 * `group_right` enables a one to many matching.
 
-See the [prometheus documentation](https://prometheus.io/docs/prometheus/latest/querying/operators/#vector-matching) for further details on matching.
+See the [Prometheus documentation](https://prometheus.io/docs/prometheus/latest/querying/operators/#vector-matching) for further details on matching.