diff --git a/app/models/Master.js b/app/models/Master.js
index 903478e..6bf9a37 100644
--- a/app/models/Master.js
+++ b/app/models/Master.js
@@ -10,7 +10,8 @@ module.exports = (sequelize, DataTypes) => {
       
       order_id: { type:  DataTypes.INTEGER },
       column_name: { type:  DataTypes.STRING },
-      master_value: { type:  DataTypes.STRING }
+      master_value: { type:  DataTypes.STRING },
+      formula: { type:  DataTypes.STRING }
      
     },
     {