diff --git a/pkg/compute/models/elasticips.go b/pkg/compute/models/elasticips.go
index c1aec85857..6d467c8073 100644
--- a/pkg/compute/models/elasticips.go
+++ b/pkg/compute/models/elasticips.go
@@ -97,7 +97,7 @@ type SElasticip struct {
 
 	// 计费类型: 流量、带宽
 	// example: bandwidth
-	ChargeType string `name:"charge_type" list:"user" create:"required"`
+	ChargeType string `width:"64" name:"charge_type" list:"user" create:"required"`
 	// 线路类型
 	BgpType string `width:"64" charset:"utf8" nullable:"true" get:"user" list:"user" create:"optional"`