diff --git a/config/sia.go b/config/sia.go
index 312f18b..84c1c12 100644
--- a/config/sia.go
+++ b/config/sia.go
@@ -18,8 +18,9 @@ type SiaConfig struct {
 
 func (s SiaConfig) Defaults() map[string]interface{} {
 	return map[string]interface{}{
-		"max_rpc_sc_price":   1,
-		"price_history_days": 90,
+		"max_rpc_sc_price":      1,
+		"max_contract_sc_price": 1,
+		"price_history_days":    90,
 	}
 }