diff --git a/adinsight_clarity.admin.inc b/adinsight_clarity.admin.inc
index 7d6c670..4589871 100644
--- a/adinsight_clarity.admin.inc
+++ b/adinsight_clarity.admin.inc
@@ -39,8 +39,8 @@ function adinsight_clarity_admin_settings_form($form_state) {
     '#type' => 'textfield',
     '#title' => t('Dynamic Number Pool ID'),
     '#default_value' => variable_get('adinsight_clarity_pool', ''),
-    '#size' => 4,
-    '#maxlength' => 4,
+    '#size' => 10,
+    '#maxlength' => 10,
     '#required' => TRUE,
     '#description' => t('Defines the number pool that the AdInsight script draws dynamic numbers from.'),
   );