diff --git a/src/Controller/S3fsImageStyleDownloadController.php b/src/Controller/S3fsImageStyleDownloadController.php
index 21286f6..7d41f9f 100644
--- a/src/Controller/S3fsImageStyleDownloadController.php
+++ b/src/Controller/S3fsImageStyleDownloadController.php
@@ -60,15 +60,11 @@ class S3fsImageStyleDownloadController extends ImageStyleDownloadController {
     }
 
     $derivative_uri = $image_style->buildUri($image_uri);
-    $headers = array();
 
-    // If using the private scheme, let other modules provide headers and
-    // control access to the file.
+    // private scheme use ImageStyleDownloadController::deliver() instead of
+    // this.
     if ($scheme == 'private') {
-      $headers = $this->moduleHandler()->invokeAll('file_download', array($image_uri));
-      if (in_array(-1, $headers) || empty($headers)) {
-        throw new AccessDeniedHttpException();
-      }
+      throw new AccessDeniedHttpException();
     }
 
     // Don't try to generate file if source is missing.
diff --git a/src/PathProcessor/S3fsPathProcessorImageStyles.php b/src/PathProcessor/S3fsPathProcessorImageStyles.php
index 88b8fb5..6f90db2 100644
--- a/src/PathProcessor/S3fsPathProcessorImageStyles.php
+++ b/src/PathProcessor/S3fsPathProcessorImageStyles.php
@@ -36,19 +36,10 @@ class S3fsPathProcessorImageStyles implements InboundPathProcessorInterface {
       if (substr_count($rest, '/') >= 2) {
         list($image_style, $scheme, $file) = explode('/', $rest, 3);
 
-        switch ($scheme) {
-          case 'public':
-            // Set the file as query parameter.
-            $request->query->set('file', $file);
-            $path = static::IMAGE_STYLE_PATH_PREFIX . $image_style . '/' . $scheme;
-            break;
-          case 'private':
-            $path_prefix = '/system/files/styles/';
-            break;
-        }
-
-        if (isset($path_prefix)) {
-            $path = str_replace(static::IMAGE_STYLE_PATH_PREFIX, $path_prefix, $path);
+        if ($scheme ==='public') {
+          // Set the file as query parameter.
+          $request->query->set('file', $file);
+          $path = static::IMAGE_STYLE_PATH_PREFIX . $image_style . '/' . $scheme;
         }
       }
     }
diff --git a/src/S3fsServiceProvider.php b/src/S3fsServiceProvider.php
index ca2e443..2b65ac1 100644
--- a/src/S3fsServiceProvider.php
+++ b/src/S3fsServiceProvider.php
@@ -37,4 +37,5 @@ class S3fsServiceProvider implements ServiceModifierInterface {
         ->setClass('Drupal\s3fs\StreamWrapper\PrivateS3fsStream');
     }
   }
+
 }