diff --git a/docs/upgrades/upgrade_4.9.1-4.9.2.sql b/docs/upgrades/upgrade_4.9.1-4.9.2.sql
index 2e086dc1a..d1fc414ea 100644
--- a/docs/upgrades/upgrade_4.9.1-4.9.2.sql
+++ b/docs/upgrades/upgrade_4.9.1-4.9.2.sql
@@ -20,4 +20,6 @@ insert into international (internationalId,languageId,namespace,message,lastUpda
 insert into international (internationalId,languageId,namespace,message,lastUpdated) values (4,1,'Auth/SMB','SMB Logon Error (3)<br>You have supplied an invalid username/password pair. Probably a typo, please try again.', 1039452797);
 insert into international (internationalId,languageId,namespace,message,lastUpdated) values (3,1,'Auth/SMB','SMB Protocol Error (2)<br>Please contact your sysadmin.', 1039452769);
 insert into international (internationalId,languageId,namespace,message,lastUpdated) values (2,1,'Auth/SMB','SMB Server Error (1)<br>Something went wrong accessing the domain controller. Perhaps the connection timed out. Please try again or contact your sysadmin.', 1039452744);
-insert into international (internationalId,languageId,namespace,message,lastUpdated) values (1,1,'Auth/SMB','SMB Authentication Options', 1039451963);
\ No newline at end of file
+insert into international (internationalId,languageId,namespace,message,lastUpdated) values (1,1,'Auth/SMB','SMB Authentication Options', 1039451963);
+alter table EventsCalendar_event add index EventsCalendar1 (wobjectId,endDate,startDate);
+