diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/blinddetail-biblio-search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/blinddetail-biblio-search.tt
index d72d51650c..8930da5d55 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/blinddetail-biblio-search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/blinddetail-biblio-search.tt
@@ -191,7 +191,9 @@
                     }
                 }
             [% END %]
-            opener.close();
+            if(opener.opener){
+                opener.close();
+            }
             window.close();
             return false;
         });