diff --git a/base/grid_layout_field.go b/base/grid_layout_field.go
index 68b1a89..1710d77 100644
--- a/base/grid_layout_field.go
+++ b/base/grid_layout_field.go
@@ -29,4 +29,4 @@ type GridLayoutField struct {
 	CreatedAt       string                    `db:"created_at"`
 }
 
-type GetGridLayoutField func(code string) (GridLayoutField, bool)
+type GetGridLayoutFields func(uuid string) ([]GridLayoutField, bool)