diff --git a/libraries/src/WebAsset/WebAssetRegistry.php b/libraries/src/WebAsset/WebAssetRegistry.php
index 7f74b11db8330..1b4e02b05100b 100644
--- a/libraries/src/WebAsset/WebAssetRegistry.php
+++ b/libraries/src/WebAsset/WebAssetRegistry.php
@@ -304,7 +304,8 @@ public function addTemplateRegistryFile(string $template, int $client): self
                 $this->addRegistryFile('templates/' . $template . '/joomla.asset.json');
                 break;
             case 1:
-                $this->addRegistryFile('administrator/templates/' . $template . '/joomla.asset.json');
+                // Use basename() for cases when the administrator folder were redefined
+                $this->addRegistryFile(basename(JPATH_ADMINISTRATOR) . '/templates/' . $template . '/joomla.asset.json');
                 break;
             default:
                 break;