diff --git a/build/api/core/AuthSystemDefault.php b/build/api/core/AuthSystemDefault.php
index 17fb4dc..f8125f2 100644
--- a/build/api/core/AuthSystemDefault.php
+++ b/build/api/core/AuthSystemDefault.php
@@ -61,7 +61,7 @@
 
 				// if admin: cas_admin
 				if( $_SESSION['CAS']['admin'] === true )
-					$_SESSION['AUTH'][] = ['cas_admin'];
+					$_SESSION['AUTH'][] = 'cas_admin';
 
 			}