diff --git a/adapter/model.go b/adapter/model.go
index 3e222dc..f4d4450 100644
--- a/adapter/model.go
+++ b/adapter/model.go
@@ -1303,6 +1303,7 @@ type SearchInstallmentsRequest struct {
 	Price                                   float64  `schema:"price"`
 	Currency                                Currency `schema:"currency"`
 	DistinctCardBrandsWithLowestCommissions bool     `schema:"distinctCardBrandsWithLowestCommissions"`
+	LoyaltyExists                           bool     `schema:"loyaltyExists"`
 }
 
 type InstallmentListResponse struct {