diff --git a/pkg/compute/models/cloudproviders.go b/pkg/compute/models/cloudproviders.go
index e16557b2d7..333d192535 100644
--- a/pkg/compute/models/cloudproviders.go
+++ b/pkg/compute/models/cloudproviders.go
@@ -1541,7 +1541,7 @@ func (provider *SCloudprovider) prepareCloudproviderRegions(ctx context.Context,
 		return []SCloudproviderregion{*cpr}, nil
 	}
 	iregions := driver.GetIRegions()
-	externalIdPrefix := strings.TrimSuffix(driver.GetCloudRegionExternalIdPrefix(), "/")
+	externalIdPrefix := driver.GetCloudRegionExternalIdPrefix()
 	_, _, cprs, result := CloudregionManager.SyncRegions(ctx, userCred, provider, externalIdPrefix, iregions)
 	if result.IsError() {
 		log.Errorf("syncRegion fail %s", result.Result())
diff --git a/pkg/compute/models/cloudregions.go b/pkg/compute/models/cloudregions.go
index 38bccbeb54..9fc3c844b6 100644
--- a/pkg/compute/models/cloudregions.go
+++ b/pkg/compute/models/cloudregions.go
@@ -17,6 +17,7 @@ package models
 import (
 	"context"
 	"database/sql"
+	"strings"
 	"time"
 
 	"yunion.io/x/cloudmux/pkg/cloudprovider"
@@ -471,11 +472,12 @@ func (self *SCloudregion) GetServerSkus() ([]SServerSku, error) {
 }
 
 func (self *SCloudprovider) GetRegionByExternalIdPrefix(prefix string) ([]SCloudregion, error) {
+	prefix = strings.TrimSuffix(prefix, "/")
 	regions := make([]SCloudregion, 0)
 	q := CloudregionManager.Query()
 	q = q.Filter(
 		sqlchemy.OR(
-			sqlchemy.Startswith(q.Field("external_id"), prefix),
+			sqlchemy.Startswith(q.Field("external_id"), prefix+"/"),
 			sqlchemy.Equals(q.Field("external_id"), prefix),
 		),
 	)