diff --git a/cataloguing/addbiblio.pl b/cataloguing/addbiblio.pl
index 4b1cd953e3..24be291037 100755
--- a/cataloguing/addbiblio.pl
+++ b/cataloguing/addbiblio.pl
@@ -393,7 +393,7 @@ sub create_input {
                     ($is_readonly ? "readonly=\"readonly\"" : "").
                     "\/>
                     <span class=\"subfield_controls\"><a href=\"#\" class=\"buttonDot tag_editor\"
-                       onclick=\"openAuth(this.parentNode.parentNode.getElementsByTagName('input')[1].id,'".$tagslib->{$tag}->{$subfield}->{authtypecode}."','biblio'); return false;\" tabindex=\"1\">Tag editor</a></span>
+                       onclick=\"openAuth(this.parentNode.parentNode.getElementsByTagName('input')[1].id,'".$tagslib->{$tag}->{$subfield}->{authtypecode}."','biblio'); return false;\" tabindex=\"1\" title=\"Tag editor\">Tag editor</a></span>
             ";
     # it's a plugin field
     }
@@ -422,7 +422,7 @@ sub create_input {
                             size=\"67\"
                             maxlength=\"".$subfield_data{maxlength}."\"
                             onblur=\"Blur$function_name($index_tag); \" \/>
-                            <span class=\"subfield_controls\"><a href=\"#\" class=\"buttonDot tag_editor\" onclick=\"Clic$function_name('$subfield_data{id}'); return false;\" tabindex=\"1\">Tag editor</a></span>
+                            <span class=\"subfield_controls\"><a href=\"#\" class=\"buttonDot tag_editor\" onclick=\"Clic$function_name('$subfield_data{id}'); return false;\" tabindex=\"1\" title=\"Tag editor\">Tag editor</a></span>
                     $javascript";
         } else {
             warn "Plugin Failed: $plugin";