diff --git a/koha-tmpl/intranet-tmpl/lib/koha/cateditor/marc-editor.js b/koha-tmpl/intranet-tmpl/lib/koha/cateditor/marc-editor.js
index ea7fde2e70..451acf0325 100644
--- a/koha-tmpl/intranet-tmpl/lib/koha/cateditor/marc-editor.js
+++ b/koha-tmpl/intranet-tmpl/lib/koha/cateditor/marc-editor.js
@@ -188,7 +188,7 @@ define( [ 'marc-record', 'koha-backend', 'preferences', 'text-marc', 'widget' ],
                 if( subfields[i].code == '9' ) continue;
                 mainstring += subfields[i].text+' ';
             }
-            newin=window.open("../authorities/auth_finder.pl?source=biblio&authtypecode="+authtype+"&index="+index+"&value_mainstr="+encodeURIComponent(mainmainstring)+"&value_main="+encodeURIComponent(mainstring), "_blank",'width=700,height=550,toolbar=false,scrollbars=yes');
+            newin=window.open("../authorities/auth_finder.pl?source=biblio&authtypecode="+authtype+"&index="+index+"&value_mainstr="+encodeURIComponent(mainmainstring)+"&value_main="+encodeURIComponent(mainstring), "_blank",'width=800,height=550,toolbar=false,scrollbars=yes');
 
         }
 
diff --git a/koha-tmpl/intranet-tmpl/prog/js/cataloging.js b/koha-tmpl/intranet-tmpl/prog/js/cataloging.js
index 5bd1841896..dc10f28c45 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/cataloging.js
+++ b/koha-tmpl/intranet-tmpl/prog/js/cataloging.js
@@ -56,7 +56,7 @@ function openAuth(tagsubfieldid,authtype,source) {
         }
     }
     mainstring = mainstring.join(' ');
-    window.open("../authorities/auth_finder.pl?source="+source+"&authtypecode="+authtype+"&index="+tagsubfieldid+"&value_mainstr="+encodeURIComponent(mainmainstring)+"&value_main="+encodeURIComponent(mainstring), "_blank",'width=700,height=550,toolbar=false,scrollbars=yes');
+    window.open("../authorities/auth_finder.pl?source="+source+"&authtypecode="+authtype+"&index="+tagsubfieldid+"&value_mainstr="+encodeURIComponent(mainmainstring)+"&value_main="+encodeURIComponent(mainstring), "_blank",'width=800,height=550,toolbar=false,scrollbars=yes');
 }
 
 function ExpandField() {