diff --git a/Apollo/api/application/config/constants.php b/Apollo/api/application/config/constants.php
index 158d7fbd..06e68d0a 100755
--- a/Apollo/api/application/config/constants.php
+++ b/Apollo/api/application/config/constants.php
@@ -127,6 +127,7 @@ defined('DEFAULTACTIVITY') OR define('DEFAULTACTIVITY','T_StatusMaster');
 defined('CERTIFICATION_MASTER') OR define('CERTIFICATION_MASTER','T_CertificationMaster');
 defined('DAYBOOKMASTER') OR define('DAYBOOKMASTER','T_DayBookMaster');
 defined('INCOMEOUTCOMEMASTER') OR define('INCOMEOUTCOMEMASTER','T_Income_Outcome_Master');
+defined('FEES_INSTALLMENT') OR define('FEES_INSTALLMENT','T_Fees_Installments');