diff --git a/deploy/modules/aws/tidb-cluster/values/default.yaml b/deploy/modules/aws/tidb-cluster/values/default.yaml
index d384fa57633..88e9b561a71 100644
--- a/deploy/modules/aws/tidb-cluster/values/default.yaml
+++ b/deploy/modules/aws/tidb-cluster/values/default.yaml
@@ -12,6 +12,7 @@ tidb:
     annotations:
       service.beta.kubernetes.io/aws-load-balancer-internal: '0.0.0.0/0'
       service.beta.kubernetes.io/aws-load-balancer-type: nlb
+      service.beta.kubernetes.io/aws-load-balancer-cross-zone-load-balancing-enabled: 'true'
   separateSlowLog: true
 monitor:
   storage: 100Gi