diff --git a/core/lib/Drupal/Component/PhpStorage/FileStorage.php b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
index a0efc92eff..cdeebec856 100644
--- a/core/lib/Drupal/Component/PhpStorage/FileStorage.php
+++ b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
@@ -154,12 +154,11 @@ protected function createDirectory($directory, $mode = 0777) {
       $parent_exists = $this->createDirectory($parent, $mode);
     }
 
-    // If parent exists, carry on.
+    // If parent exists, try to create the directory and ensure to set its
+    // permissions, because mkdir() obeys the umask of the current process.
     if ($parent_exists) {
-      // Otherwise, try to create the directory and ensure to set its permissions,
-      // because mkdir() obeys the umask of the current process.
       // We hide warnings and ignore the return because there may have been a
-      // race getting here and could fail because the directory already exists.
+      // race getting here and the directory could already exists.
       @mkdir($directory);
       // Only try to chmod() if the subdirectory could be created.
       if (is_dir($directory)) {