diff --git a/system/Commands/Utilities/Optimize.php b/system/Commands/Utilities/Optimize.php
index d833fc5a3063..7caa50c91575 100644
--- a/system/Commands/Utilities/Optimize.php
+++ b/system/Commands/Utilities/Optimize.php
@@ -73,7 +73,7 @@ public function run(array $params)
         // Parse options
         $enableConfigCache  = CLI::getOption('c');
         $enableLocatorCache = CLI::getOption('l');
-        $restoreDefaults    = CLI::getOption('r');
+        $disable    = CLI::getOption('d');
 
         try {
             $this->enableCaching($enableConfigCache, $enableLocatorCache, $restoreDefaults);