diff --git a/catalogue/detail.pl b/catalogue/detail.pl
index e4d84aa0ea..3bf6255037 100755
--- a/catalogue/detail.pl
+++ b/catalogue/detail.pl
@@ -619,7 +619,7 @@ if ( C4::Context->preference('UseCourseReserves') ) {
     $template->param( course_reserves => $course_reserves );
 }
 
-$template->param(found1 => $query->param('found1') );
+$template->param(found1 => scalar $query->param('found1') );
 
 $template->param(biblio => $biblio);