diff --git a/source/CAS.php b/source/CAS.php
index e6894e6a..68417ce7 100644
--- a/source/CAS.php
+++ b/source/CAS.php
@@ -136,11 +136,6 @@
  */
 define("SAML_ATTRIBUTES", 'SAMLATTRIBS');
 
-/**
- * SAML Attributes
- */
-define("DEFAULT_ERROR", 'Internal script failure');
-
 /** @} */
 /**
  * @addtogroup publicPGTStorage