diff --git a/db_maintenance.module b/db_maintenance.module
index b79098f..23388b5 100644
--- a/db_maintenance.module
+++ b/db_maintenance.module
@@ -154,7 +154,9 @@ function db_maintenance_optimize_tables() {
         }
         // Return to the previously set database.
         db_set_active($previous);
-        watchdog('db_maintenance', 'Optimized @table table in @db database.', array('@db' => $db_name, '@table' => $table_name), WATCHDOG_DEBUG);
+        if (variable_get('db_maintenance_log', 0)) {
+          watchdog('db_maintenance', 'Optimized @table table in @db database.', array('@db' => $db_name, '@table' => $table_name), WATCHDOG_DEBUG);
+        }
       }
       if (variable_get('db_maintenance_log', 0)) {
         $tables = implode(', ', $config_tables);