diff --git a/core/lib/Drupal/Component/PhpStorage/FileStorage.php b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
index 7d67253bb9f9c9ab8a8d49f63f7d996a6605da0b..12fe77356186c29eb94a900371dcd02e467924ef 100644
--- a/core/lib/Drupal/Component/PhpStorage/FileStorage.php
+++ b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
@@ -94,7 +94,7 @@ protected function ensureDirectory($directory, $mode = 0777) {
    */
   protected function createDirectory($directory, $mode = 0777) {
     // If running under Windows replace illegal characters with _.
-    $directory = \Drupal\Component\PhpStorage\MTimeProtectedFastFileStorage::sanitizeFilename($directory);
+    $directory = MTimeProtectedFastFileStorage::sanitizeFilename($directory);
     // If the directory exists already, there's nothing to do.
     if (is_dir($directory)) {
       return TRUE;
diff --git a/core/lib/Drupal/Component/PhpStorage/MTimeProtectedFastFileStorage.php b/core/lib/Drupal/Component/PhpStorage/MTimeProtectedFastFileStorage.php
index 08886ebc35acb1a7e30b6d7f609eb427f0e8aecb..0746ced9966af8fef7e33e6a4185ba7d7cc1a757 100644
--- a/core/lib/Drupal/Component/PhpStorage/MTimeProtectedFastFileStorage.php
+++ b/core/lib/Drupal/Component/PhpStorage/MTimeProtectedFastFileStorage.php
@@ -239,7 +239,7 @@ protected function tempnam($directory, $prefix) {
    * If running under Windows, replace illegal filename characters with _.
    *
    * @param string $filename
-   *   The name of the file or directory we want to sanitise.
+   *   The name of the file or directory we want to sanitize.
    *
    * @return string
    *