diff --git a/core/modules/config/src/Tests/ConfigImportAllTest.php b/core/modules/config/src/Tests/ConfigImportAllTest.php
index da39acf..cc10bc6 100644
--- a/core/modules/config/src/Tests/ConfigImportAllTest.php
+++ b/core/modules/config/src/Tests/ConfigImportAllTest.php
@@ -53,7 +53,7 @@ public function testInstallUninstall() {
     $all_modules = array_filter($all_modules, function ($module) {
       // Filter hidden, already enabled modules and modules in the Testing
       // package.
-      if (!empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing') {
+      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing') {
         return FALSE;
       }
       return TRUE;