diff --git a/htdocs/contact/list.php b/htdocs/contact/list.php
index 391535d784e..dc8c77d0e1e 100644
--- a/htdocs/contact/list.php
+++ b/htdocs/contact/list.php
@@ -75,7 +75,11 @@ $search_phone_pro = GETPOST("search_phone_pro", 'alpha');
 $search_phone_mobile = GETPOST("search_phone_mobile", 'alpha');
 $search_fax = GETPOST("search_fax", 'alpha');
 $search_email = GETPOST("search_email", 'alpha');
-$search_no_email = GETPOST("search_no_email", 'int');
+if (!empty($conf->mailing->enabled)) {
+	$search_no_email = GETPOST("search_no_email", 'int');
+} else {
+	$search_no_email = -1;
+}
 if (!empty($conf->socialnetworks->enabled)) {
 	foreach ($socialnetworks as $key => $value) {
 		if ($value['active']) {