diff --git a/plugins/ultimate_cron/logger/database.class.php b/plugins/ultimate_cron/logger/database.class.php
index 6da4581..7888400 100644
--- a/plugins/ultimate_cron/logger/database.class.php
+++ b/plugins/ultimate_cron/logger/database.class.php
@@ -213,7 +213,7 @@ class UltimateCronDatabaseLogger extends UltimateCronLogger {
       '#parents' => array('settings', $this->type, $this->name, 'retain'),
       '#type' => 'textfield',
       '#title' => t('Retain logs'),
-      '#description' => t('Retain X amount of log entries.'),
+      '#description' => t('Retain X amount of log entries; this value is per cron job. Setting this to 1000 on sites with 15 cron jobs will store a total of 15000 entries. High values can result in slower log performance.'),
       '#default_value' => $values['retain'],
       '#fallback' => TRUE,
       '#required' => TRUE,