diff --git a/_data/rules.yml b/_data/rules.yml
index 6622291..cbc3bf7 100644
--- a/_data/rules.yml
+++ b/_data/rules.yml
@@ -1334,7 +1334,7 @@ groups:
                 query: 'sum by (backend) (rate(haproxy_server_http_responses_total{code="4xx"}[1m])) / sum by (backend) (rate(haproxy_server_http_responses_total[1m]) * 100) > 5'
                 severity: critical
                 for: 1m
-              - name: HAProxy high HTTP 4xx error rate backend
+              - name: HAProxy high HTTP 5xx error rate backend
                 description: Too many HTTP requests with status 5xx (> 5%) on backend {{ $labels.fqdn }}/{{ $labels.backend }}
                 query: 'sum by (backend) (rate(haproxy_server_http_responses_total{code="5xx"}[1m])) / sum by (backend) (rate(haproxy_server_http_responses_total[1m]) * 100) > 5'
                 severity: critical