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-rw-r--r--lib/exceptions/InvalidSecurityTokenException.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/exceptions/InvalidSecurityTokenException.php b/lib/exceptions/InvalidSecurityTokenException.php
index 134f54d..b78ad6a 100644
--- a/lib/exceptions/InvalidSecurityTokenException.php
+++ b/lib/exceptions/InvalidSecurityTokenException.php
@@ -19,7 +19,7 @@ class InvalidSecurityTokenException extends AccessDeniedException
/**
* @param string this parameter is ignored but required by PHP
*/
- public function __construct($message = '', $code = 0, Exception $previous = null)
+ public function __construct($message = '', $code = 0, ?Exception $previous = null)
{
parent::__construct(_('Ungültiges oder fehlendes Sicherheits-Token.'));
}