diff --git a/review/drupal/pifr_drupal.client.inc b/review/drupal/pifr_drupal.client.inc
index e9bff0e..e30076c 100644
--- a/review/drupal/pifr_drupal.client.inc
+++ b/review/drupal/pifr_drupal.client.inc
@@ -172,13 +172,14 @@ class pifr_client_review_pifr_drupal extends pifr_client_review {
       }
     }
 
-    // We remove the D8 core/vendor directory, as it contains non-Drupal code
-    // which we do not want to run through coder, and potentially contains php
-    // 5.4 code which will not pass the syntax check.
+    // We remove the D8 vendor/ and core/vendor directories. They contain
+    // non-Drupal code which we do not want to run through coder. Due to version
+    // incompatibilities, PHP lint results of vendor code will likely cause
+    // false failures.
     // @TODO: Modules can still specify a requirement for PHP 5.4, in which
     // case they may still fail the syntax checks.
     foreach ($files as $key => $file) {
-      if (preg_match('|^core/vendor/|', $file)) {
+      if (preg_match('#^core/vendor/|^vendor/#', $file)) {
         unset($files[$key]);
       }
     }