diff --git a/includes/KPSEARCH.inc b/includes/KPSEARCH.inc
index 3ac8029..ea02de6 100644
--- a/includes/KPSEARCH.inc
+++ b/includes/KPSEARCH.inc
@@ -136,6 +136,7 @@ class KPSEARCH extends ChadoCustomSearch {
     $form['scientific_name']['species']['#options'] = $species;
     $form['scientific_name']['species']['#empty_option'] = '- Select Species -';
     $form['scientific_name']['species']['#default_value'] = $species_default;
+    $form['scientific_name']['species']['#attributes'] = ['onchange' => 'this.form.submit();'];
     unset($form['species']);
   }