diff --git a/src/Illuminate/Testing/PendingCommand.php b/src/Illuminate/Testing/PendingCommand.php
index 062d2a17738c..0946161d4caf 100644
--- a/src/Illuminate/Testing/PendingCommand.php
+++ b/src/Illuminate/Testing/PendingCommand.php
@@ -354,6 +354,8 @@ public function run()
         $this->verifyExpectations();
         $this->flushExpectations();
 
+        $this->app->offsetUnset(OutputStyle::class);
+
         return $exitCode;
     }