diff --git a/odpf/guardian/v1beta1/guardian.proto b/odpf/guardian/v1beta1/guardian.proto
index 393bcf26..4e00926f 100644
--- a/odpf/guardian/v1beta1/guardian.proto
+++ b/odpf/guardian/v1beta1/guardian.proto
@@ -433,6 +433,7 @@ message Policy {
         string strategy = 5;
         string approve_if = 6;
         repeated string approvers = 7;
+        string rejection_reason = 8;
     }
     repeated ApprovalStep steps = 4;