diff --git a/classes/components/forms/publication/ContributorForm.php b/classes/components/forms/publication/ContributorForm.php
index 1fe85d1e57c..9518165948b 100644
--- a/classes/components/forms/publication/ContributorForm.php
+++ b/classes/components/forms/publication/ContributorForm.php
@@ -110,6 +110,7 @@ public function __construct(string $action, array $locales, Submission $submissi
             ->addField(new FieldText('affiliation', [
                 'label' => __('user.affiliation'),
                 'isMultilingual' => true,
+                'size' => 'large',
             ]));
 
         if ($authorUserGroupsOptions->count() > 1) {