diff --git a/modules/dblog/dblog.admin.inc b/modules/dblog/dblog.admin.inc
index 7c1c0e2..cb4fa2e 100644
--- a/modules/dblog/dblog.admin.inc
+++ b/modules/dblog/dblog.admin.inc
@@ -413,6 +413,6 @@ function dblog_clear_log_form($form) {
  */
 function dblog_clear_log_submit() {
   $_SESSION['dblog_overview_filter'] = array();
-  db_delete('watchdog')->execute();
+  db_truncate('watchdog')->execute();
   drupal_set_message(t('Database log cleared.'));
 }