diff --git a/installer/data/mysql/localization/it-IT/custom.sql b/installer/data/mysql/localization/it-IT/custom.sql
index 7fa65cfe54..68dfabc28d 100644
--- a/installer/data/mysql/localization/it-IT/custom.sql
+++ b/installer/data/mysql/localization/it-IT/custom.sql
@@ -28,7 +28,7 @@ UPDATE systempreferences SET value = 'email' WHERE variable = 'EmailFieldPrimary
 UPDATE systempreferences SET value = '1' WHERE variable = 'BiblioAddsAuthorities';
 UPDATE systempreferences SET value = 'surname|cardnumber' WHERE variable = 'BorrowerMandatoryField';
 UPDATE systempreferences SET value = '0' WHERE variable = 'BorrowersLog';
-UPDATE systempreferences SET value = 'Sig|Sig.ra|Sig.na' WHERE variable = 'BorrowersTitles';
+UPDATE systempreferences SET value = 'Sig|Sig.ra|Dott.|Dott.ssa' WHERE variable = 'BorrowersTitles';
 UPDATE systempreferences SET value = '0' WHERE variable = 'CataloguingLog';
 UPDATE systempreferences SET value = 'FR' WHERE variable = 'CurrencyFormat';
 UPDATE systempreferences SET value = 'metric' WHERE variable = 'dateformat';
@@ -49,8 +49,6 @@ UPDATE systempreferences SET value = 'title' WHERE variable = 'OPACdefaultSortFi
 UPDATE systempreferences SET value = 'asc' WHERE variable = 'OPACdefaultSortOrder';
 UPDATE systempreferences SET value = 'en,it-IT' WHERE variable = 'OPACLanguages';
 UPDATE systempreferences SET value = '1' WHERE variable = 'opaclanguagesdisplay';
-UPDATE systempreferences SET value = '<h3>Benvenuto !!</h3>' WHERE variable = 'OpacMainUserBlock';
-UPDATE systempreferences SET value = 'Links importanti qui.' WHERE variable = 'OpacNav';
 UPDATE systempreferences SET value = '0' WHERE variable = 'OPACShelfBrowser';
 UPDATE systempreferences SET value = '1' WHERE variable = 'OPACURLOpenInNewWindow';
 UPDATE systempreferences SET value = '0' WHERE variable = 'QueryFuzzy';
@@ -60,22 +58,3 @@ UPDATE systempreferences SET value = '1' WHERE variable = 'TagsModeration';
 UPDATE systempreferences SET value = '30600' WHERE variable = 'timeout';
 UPDATE systempreferences SET value = '1' WHERE variable = 'UseICUStyleQuotes';
 UPDATE systempreferences SET value = 'URLLinkText' WHERE variable = 'URLLinkText';
-
-UPDATE systempreferences SET value = '#200|<span style=\"font-weight:bold\">|{200a}{. 200c}{ : 200e}{200d}{ / 200f}{ ; 200g}{. 200h}{. 200i}|</span>\r\n#210|. &ndash; |{210a}{ : 210c}{, 210d}|\r\n#215|. &ndash; |{215a}{ ; 215d}|\r\n#225|. &ndash; |{(225a}{ ; 225v)}|\r\n#010|. &ndash; |{ISBN 010a}|' WHERE variable = 'ISBD';
-
-INSERT INTO authorised_values (category, authorised_value, lib) VALUES
-('COUNTRY', 'IT', 'Italia'),
-('COUNTRY', 'US', 'Stati Uniti'),
-('COUNTRY', 'GB', 'Regno Unito - UK '),
-('COUNTRY', 'DE', 'Germania'),
-('COUNTRY', 'FR', 'Francia'),
-('COUNTRY', 'VA', 'Vaticano'),
-('COUNTRY', 'CN', 'Cina'),
-('COUNTRY', 'IN', 'India');
-
-INSERT INTO authorised_values (category, authorised_value, lib) VALUES
-('LANG', 'ita', 'italiano'),
-('LANG', 'eng', 'inglese'),
-('LANG', 'ger', 'tedesco'),
-('LANG', 'fre', 'francese'),
-('LANG', 'lat', 'latino');