diff --git a/src/lint/engine/ComprehensiveLintEngine.php b/src/lint/engine/ComprehensiveLintEngine.php
--- a/src/lint/engine/ComprehensiveLintEngine.php
+++ b/src/lint/engine/ComprehensiveLintEngine.php
@@ -33,7 +33,7 @@
     $py_paths = preg_grep('/\.py$/', $paths);
     $linters[] = id(new ArcanistPyFlakesLinter())->setPaths($py_paths);
     $linters[] = id(new ArcanistPEP8Linter())
-      ->setFlags(array($this->getPEP8WithTextOptions()))
+      ->setFlags($this->getPEP8WithTextOptions())
       ->setPaths($py_paths);
 
     $linters[] = id(new ArcanistRubyLinter())