diff --git a/app/executor.php b/app/executor.php
index a38837bb19..bf99aea0db 100644
--- a/app/executor.php
+++ b/app/executor.php
@@ -283,8 +283,8 @@ App::post('/v1/runtimes')
             $endTime = \time();
             $container = array_merge($container, [
                 'status' => 'ready',
-                'stdout' => \mb_strcut(\utf8_encode($stdout), 0, 1000000), // Limit to 1MB
-                'stderr' => \mb_strcut(\utf8_encode($stderr), 0, 1000000), // Limit to 1MB
+                'stdout' => \mb_strcut($stdout, 0, 1000000), // Limit to 1MB
+                'stderr' => \mb_strcut($stderr, 0, 1000000), // Limit to 1MB
                 'startTime' => $startTime,
                 'endTime' => $endTime,
                 'duration' => $endTime - $startTime,
@@ -722,4 +722,4 @@ $http->on('request', function (SwooleRequest $swooleRequest, SwooleResponse $swo
     }
 });
 
-$http->start();
\ No newline at end of file
+$http->start();