diff --git a/includes/forms.php b/includes/forms.php
index 3160e3f..35922f1 100644
--- a/includes/forms.php
+++ b/includes/forms.php
@@ -14,3 +14,21 @@ require_once(__DIR__ . '/forms/field-ClassicRating.php');
 
 // ## Form hooks
 require_once(__DIR__ . '/forms/form-satisfaction.php');
+
+
+// Limit countries for the paper publication order form
+
+add_filter('gform_pre_render_18', 'homegrade_paper_publications_form_limit_countries');
+add_filter('gform_pre_validation_18', 'homegrade_paper_publications_form_limit_countries');
+add_filter('gform_pre_submission_filter_18', 'homegrade_paper_publications_form_limit_countries');
+add_filter('gform_admin_pre_render_18', 'homegrade_paper_publications_form_limit_countries');
+
+function homegrade_paper_publications_form_limit_countries($form)
+{
+
+	add_filter('gform_countries', function ($countries) {
+		return array(__("Belgique", "homegrade_theme--texte-fonctionnel"));
+	});
+
+	return $form;
+}