diff --git a/plugins/CasAuthentication/CasAuthenticationPlugin.php b/plugins/CasAuthentication/CasAuthenticationPlugin.php
index 26f21af160..818a11f77e 100644
--- a/plugins/CasAuthentication/CasAuthenticationPlugin.php
+++ b/plugins/CasAuthentication/CasAuthenticationPlugin.php
@@ -57,8 +57,6 @@ class CasAuthenticationPlugin extends AuthenticationPlugin
          case 'CasloginAction':
             require_once(INSTALLDIR.'/plugins/CasAuthentication/' . strtolower(mb_substr($cls, 0, -6)) . '.php');
             return false;
-         default:
-            return parent::onAutoload($cls);
         }
     }
 
diff --git a/plugins/LdapAuthentication/LdapAuthenticationPlugin.php b/plugins/LdapAuthentication/LdapAuthenticationPlugin.php
index af42be761e..c14fa21a9c 100644
--- a/plugins/LdapAuthentication/LdapAuthenticationPlugin.php
+++ b/plugins/LdapAuthentication/LdapAuthenticationPlugin.php
@@ -74,8 +74,6 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
          case 'MemcacheSchemaCache':
             require_once(INSTALLDIR.'/plugins/LdapAuthentication/MemcacheSchemaCache.php');
             return false;
-         default:
-            return parent::onAutoload($cls);
         }
     }