diff --git a/model/gmodel/fs_product_logic.go b/model/gmodel/fs_product_logic.go
index 314886c0..1e7d87e9 100755
--- a/model/gmodel/fs_product_logic.go
+++ b/model/gmodel/fs_product_logic.go
@@ -4,7 +4,7 @@ import "context"
 
 type RelaFsProduct struct {
 	FsProduct
-	CoverResource *FsResource `json:"cover_resource" gorm:"foreignkey:cover;references:resource_id"`
+	CoverResource *FsResource `json:"cover_resource" gorm:"foreignkey:cover;references:resource_url"`
 }
 
 func (m *FsProductModel) TableName() string {