diff --git a/src/main/java/com/zaxxer/hikari/metrics/prometheus/HikariCPCollector.java b/src/main/java/com/zaxxer/hikari/metrics/prometheus/HikariCPCollector.java
index 7d4dff255..c71c12380 100644
--- a/src/main/java/com/zaxxer/hikari/metrics/prometheus/HikariCPCollector.java
+++ b/src/main/java/com/zaxxer/hikari/metrics/prometheus/HikariCPCollector.java
@@ -66,7 +66,7 @@ private GaugeSnapshot createGauge(String metric, String help,
    {
       Collection<GaugeSnapshot.GaugeDataPointSnapshot> gaugeDataPointSnapshots = new ArrayList<>();
       poolStatsMap.forEach((k, v) -> gaugeDataPointSnapshots.add(
-         new GaugeSnapshot.GaugeDataPointSnapshot(metricValueFunction.apply(v), Labels.of(k), null)
+         new GaugeSnapshot.GaugeDataPointSnapshot(metricValueFunction.apply(v), Labels.of("pool", k), null)
       ));
       return new GaugeSnapshot(new MetricMetadata(metric, help), gaugeDataPointSnapshots);
    }