diff --git a/admin/systempreferences.pl b/admin/systempreferences.pl
index 69c1ee7602..c571c99068 100755
--- a/admin/systempreferences.pl
+++ b/admin/systempreferences.pl
@@ -268,7 +268,6 @@ my %tabsysprefs;
 
 # OPAC
     $tabsysprefs{SearchMyLibraryFirst}="OPAC";
-    $tabsysprefs{Disable_Dictionary}="OPAC";
     $tabsysprefs{hidelostitems}="OPAC";
     $tabsysprefs{opacbookbag}="OPAC";
     $tabsysprefs{opaclanguagesdisplay}="OPAC";
diff --git a/installer/data/mysql/en/mandatory/sysprefs.sql b/installer/data/mysql/en/mandatory/sysprefs.sql
index e9445bf7f3..7c1725c3bd 100755
--- a/installer/data/mysql/en/mandatory/sysprefs.sql
+++ b/installer/data/mysql/en/mandatory/sysprefs.sql
@@ -21,7 +21,6 @@ INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('CataloguingLog',1,'If ON, log edit/create/delete actions on bibliographic data',NULL,'YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('checkdigit','none','If ON, enable checks on patron cardnumber: none or \"Katipo\" style checks','none|katipo','Choice');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('delimiter',';','Define the default separator character for exporting reports',';|tabulation|,|/|\\|#|\|','Choice');
-INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('Disable_Dictionary',1,'If ON, disable Authority Searching and OPAC Dictionary','','YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES ('EnhancedMessagingPreferences',0,'If ON, allows patrons to select to receive additional messages about items due or nearly due.','','YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('expandedSearchOption',0,'If ON, set advanced search to be expanded by default',NULL,'YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('FinesLog',1,'If ON, log fines',NULL,'YesNo');
diff --git a/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql b/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql
index f27dada650..ddc1e800e1 100755
--- a/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql
+++ b/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql
@@ -24,7 +24,6 @@ INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('checkdigit','none','If ON, enable checks on patron cardnumber: none or \"Katipo\" style checks','none|katipo','Choice');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('dateformat', 'us', 'Ce paramètre définit le format d''affichage des dates (us mm/jj/aaaa, metric jj/mm/aaaa, ISO aaaa/mm/jj)', 'metric|us|iso', 'Choice');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('delimiter', ';', 'Ce paramètre définit le séparateur par défaut lors des exports (au format csv) de données (Rapports, statistiques...)', ';|tabulation|,|/|\\|#', 'Choice');
-INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('Disable_Dictionary','1','Désactive ou non la recherche dictionnaire à l''OPAC','','YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES ('EnhancedMessagingPreferences',0,'If ON, allows patrons to select to receive additional messages about items due or nearly due.','','YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('expandedSearchOption', '1', 'active par défaut la recherche la plus avancée', '', 'YesNo');
 INSERT INTO `systempreferences` (variable,value,explanation,options,type) VALUES('FinesLog', '0', 'Activer ce paramètre pour enregistrer les actions sur les pénalités financières', '', 'YesNo');
diff --git a/opac/opac-main.pl b/opac/opac-main.pl
index d72e55b1b6..1bce420d49 100755
--- a/opac/opac-main.pl
+++ b/opac/opac-main.pl
@@ -56,8 +56,4 @@ $template->param(
     koha_news_count => $koha_news_count
 );
 
-$template->param(
-    'Disable_Dictionary' => C4::Context->preference("Disable_Dictionary") )
-  if ( C4::Context->preference("Disable_Dictionary") );
-
 output_html_with_http_headers $input, $cookie, $template->output;