diff --git a/validator/rpc/apimiddleware/structs.go b/validator/rpc/apimiddleware/structs.go
index 0f164f78a..b96e8e0c7 100644
--- a/validator/rpc/apimiddleware/structs.go
+++ b/validator/rpc/apimiddleware/structs.go
@@ -24,7 +24,7 @@ type deleteKeystoresRequestJson struct {
 }
 
 type statusJson struct {
-	Status  string `json:"status"`
+	Status  string `json:"status" enum:"true"`
 	Message string `json:"message"`
 }