diff --git a/app/controllers/calculation.controller.js b/app/controllers/calculation.controller.js
index 18a975e..41e5736 100644
--- a/app/controllers/calculation.controller.js
+++ b/app/controllers/calculation.controller.js
@@ -2,7 +2,8 @@ const db = require("../models");
 const logger = require("../services/logger");
 const  IPICalculationService  = require("../services/ipi_calculation_service");
 const  SubmissionAutoFillService  = require("../services/auto_fill_missing_quarterly_submissions_service");
-const CalculationLog = db.CalculationLog; 
+const CalculationLog = db.CalculationLog;
+const QuarterlyWindowsConfiguration = db.QuarterlyWindowsConfiguration;
 
 // Database configuration
 const dbConfig =  {