diff --git a/username_policy.module b/username_policy.module
index 6389f70..aae1ff0 100644
--- a/username_policy.module
+++ b/username_policy.module
@@ -157,10 +157,11 @@ function username_policy_theme() {
 /**
  * Implement theme for username_policy_pattern_elements.
  *
- * @param vars
- *
- * @return themed table with data
+ * @param $vars
+ *   An array of variable.
  *
+ * @return string
+ *   Themed tabular format.
  */
 function theme_username_policy_pattern_elements($vars) {
   $element = $vars['pattern'];