diff --git a/lib/formfields/admin/customer/formfield.customer_add.php b/lib/formfields/admin/customer/formfield.customer_add.php
index bba95e12..862ecb9f 100644
--- a/lib/formfields/admin/customer/formfield.customer_add.php
+++ b/lib/formfields/admin/customer/formfield.customer_add.php
@@ -178,7 +178,7 @@ return array(
 						'label' => $lng['customer']['diskspace'],
 						'type' => 'textul',
 						'value' => 0,
-						'maxlength' => 6,
+						'maxlength' => 16,
 						'mandatory' => true,
 						'ul_field' => $diskspace_ul
 					),
@@ -186,7 +186,7 @@ return array(
 						'label' => $lng['customer']['traffic'],
 						'type' => 'textul',
 						'value' => 0,
-						'maxlength' => 4,
+						'maxlength' => 14,
 						'mandatory' => true,
 						'ul_field' => $traffic_ul
 					),
diff --git a/lib/formfields/admin/customer/formfield.customer_edit.php b/lib/formfields/admin/customer/formfield.customer_edit.php
index 70654183..86d8820c 100644
--- a/lib/formfields/admin/customer/formfield.customer_edit.php
+++ b/lib/formfields/admin/customer/formfield.customer_edit.php
@@ -170,7 +170,7 @@ return array(
 						'label' => $lng['customer']['diskspace'],
 						'type' => 'textul',
 						'value' => $result['diskspace'],
-						'maxlength' => 6,
+						'maxlength' => 16,
 						'mandatory' => true,
 						'ul_field' => $diskspace_ul
 					),
@@ -178,7 +178,7 @@ return array(
 						'label' => $lng['customer']['traffic'],
 						'type' => 'textul',
 						'value' => $result['traffic'],
-						'maxlength' => 4,
+						'maxlength' => 14,
 						'mandatory' => true,
 						'ul_field' => $traffic_ul
 					),