diff --git a/html/admin/sql/patch/upgrade10.sql b/html/admin/sql/patch/upgrade10.sql
index 7da16a6b6..491562d6e 100644
--- a/html/admin/sql/patch/upgrade10.sql
+++ b/html/admin/sql/patch/upgrade10.sql
@@ -25,7 +25,7 @@ $BODY$
 
 -- Function: check_balance(p_grpt text)
 
-DROP FUNCTION check_balance(text);
+-- DROP FUNCTION check_balance(text);
 
 CREATE OR REPLACE FUNCTION check_balance(p_grpt integer)
   RETURNS "numeric" AS
@@ -139,4 +139,4 @@ create view vw_client as
 
 
 update version set val=11;
-commit;
\ No newline at end of file
+commit;