diff --git a/jsonnet/kube-prometheus/alerts/prometheus.libsonnet b/jsonnet/kube-prometheus/alerts/prometheus.libsonnet
index 32d8262b..99be08ff 100644
--- a/jsonnet/kube-prometheus/alerts/prometheus.libsonnet
+++ b/jsonnet/kube-prometheus/alerts/prometheus.libsonnet
@@ -131,7 +131,7 @@
             },
           },
           {
-            alert: 'PrometheusTargetScapesDuplicate',
+            alert: 'PrometheusTargetScrapesDuplicate',
             annotations: {
               description: '{{$labels.namespace}}/{{$labels.pod}} has many samples rejected due to duplicate timestamps but different values',
               summary: 'Prometheus has many samples rejected',
diff --git a/manifests/prometheus-rules.yaml b/manifests/prometheus-rules.yaml
index 5af7d2fa..695bcb0d 100644
--- a/manifests/prometheus-rules.yaml
+++ b/manifests/prometheus-rules.yaml
@@ -849,7 +849,7 @@ spec:
       for: 10m
       labels:
         severity: warning
-    - alert: PrometheusTargetScapesDuplicate
+    - alert: PrometheusTargetScrapesDuplicate
       annotations:
         description: '{{$labels.namespace}}/{{$labels.pod}} has many samples rejected
           due to duplicate timestamps but different values'