diff --git a/src/Illuminate/Foundation/Console/OptimizeClearCommand.php b/src/Illuminate/Foundation/Console/OptimizeClearCommand.php
index 0fc7d961df83..0bd92dfee368 100644
--- a/src/Illuminate/Foundation/Console/OptimizeClearCommand.php
+++ b/src/Illuminate/Foundation/Console/OptimizeClearCommand.php
@@ -30,6 +30,7 @@ public function handle()
         $this->call('view:clear');
         $this->call('cache:clear');
         $this->call('route:clear');
+        $this->call('config:clear');
         $this->call('clear-compiled');
 
         $this->info('Caches cleared successfully!');