diff --git a/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php b/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php
index 42fbd2a..4954647 100644
--- a/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/UpdateModuleHandler.php
@@ -103,7 +103,7 @@ public function install(array $module_list, $enable_dependencies = TRUE) {
       // The default configuration is not altered in any way, and since the module
       // is just being installed, none of its configuration can exist already, so
       // this is a plain copy operation from one storage to another.
-      $module_config_path = drupal_get_path('module', $module) . '/config';
+      $module_config_path = drupal_get_path('module', $module) . '/config/install';
       if (is_dir($module_config_path)) {
         $module_filestorage = new FileStorage($module_config_path);
         $config_storage = \Drupal::service('config.storage');
diff --git a/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php b/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php
index 12ee30c..fd6b4fb 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php
@@ -95,7 +95,7 @@ function assertModuleTablesDoNotExist($module) {
    *   TRUE if configuration has been installed, FALSE otherwise.
    */
   function assertModuleConfig($module) {
-    $module_config_dir = drupal_get_path('module', $module) . '/config';
+    $module_config_dir = drupal_get_path('module', $module) . '/config/install';
     if (!is_dir($module_config_dir)) {
       return;
     }