diff --git a/contrib/envoy/extensions/network/connection_balance/dlb/v3alpha/dlb.proto b/contrib/envoy/extensions/network/connection_balance/dlb/v3alpha/dlb.proto
index ea3e12be..2cb24498 100644
--- a/contrib/envoy/extensions/network/connection_balance/dlb/v3alpha/dlb.proto
+++ b/contrib/envoy/extensions/network/connection_balance/dlb/v3alpha/dlb.proto
@@ -30,4 +30,8 @@ message Dlb {
   // The ID of the Dlb hardware, start from 0.
   // If not specified, use the first available device as default.
   uint32 id = 1;
+
+  // Maximum number of retries when sending to DLB device fails.
+  // No retry as default.
+  uint32 max_retries = 2;
 }