diff --git a/src/lint/linter/ArcanistExternalLinter.php b/src/lint/linter/ArcanistExternalLinter.php
--- a/src/lint/linter/ArcanistExternalLinter.php
+++ b/src/lint/linter/ArcanistExternalLinter.php
@@ -321,9 +321,9 @@
     $binary = $this->getBinary();
 
     if ($interpreter) {
-      $bin = csprintf('%s %s', $interpreter, $binary);
+      $bin = csprintf('%R %s', $interpreter, $binary);
     } else {
-      $bin = csprintf('%s', $binary);
+      $bin = csprintf('%R', $binary);
     }
 
     return $bin;