diff --git a/core/modules/migrate_drupal/config/install/migrate.migration.d6_system_file.yml b/core/modules/migrate_drupal/config/install/migrate.migration.d6_system_file.yml
index 7515202..3288591 100644
--- a/core/modules/migrate_drupal/config/install/migrate.migration.d6_system_file.yml
+++ b/core/modules/migrate_drupal/config/install/migrate.migration.d6_system_file.yml
@@ -5,11 +5,9 @@ migration_groups:
 source:
   plugin: variable
   variables:
-    - file_directory_path
     - file_directory_temp
     - allow_insecure_uploads
 process:
-  'path/private': file_directory_path
   'path/temporary': file_directory_temp
   allow_insecure_uploads:
     plugin: static_map
diff --git a/core/modules/migrate_drupal/src/Tests/Dump/Drupal6SystemFile.php b/core/modules/migrate_drupal/src/Tests/Dump/Drupal6SystemFile.php
index cc65200..91eedf3 100644
--- a/core/modules/migrate_drupal/src/Tests/Dump/Drupal6SystemFile.php
+++ b/core/modules/migrate_drupal/src/Tests/Dump/Drupal6SystemFile.php
@@ -22,6 +22,11 @@ public function load() {
       'value',
     ))
     ->values(array(
+      'name' => 'file_directory_path',
+      // This sets up MigrateDrupal6Test to pass. Do not change.
+      'value' => 's:29:"core/modules/simpletest/files";',
+    ))
+    ->values(array(
       'name' => 'file_directory_temp',
       'value' => 's:10:"files/temp";',
     ))