diff --git a/application/loginbasic.class.inc.php b/application/loginbasic.class.inc.php
index 76ce4ae30..68f8eeaf6 100644
--- a/application/loginbasic.class.inc.php
+++ b/application/loginbasic.class.inc.php
@@ -59,7 +59,6 @@ class LoginBasic extends AbstractLoginFSMExtension
 			list($sAuthUser, $sAuthPwd) = $this->GetAuthUserAndPassword();
 			if (!UserRights::CheckCredentials($sAuthUser, $sAuthPwd, Session::Get('login_mode'), 'internal'))
 			{
-				$_SESSION['auth_user'] = $sAuthUser;
 				$iErrorCode = LoginWebPage::EXIT_CODE_WRONGCREDENTIALS;
 				return LoginWebPage::LOGIN_FSM_ERROR;
 			}
diff --git a/application/loginexternal.class.inc.php b/application/loginexternal.class.inc.php
index 6cc313251..a666c0de5 100644
--- a/application/loginexternal.class.inc.php
+++ b/application/loginexternal.class.inc.php
@@ -42,7 +42,6 @@ class LoginExternal extends AbstractLoginFSMExtension
 			$sAuthUser = $this->GetAuthUser();
 			if (!UserRights::CheckCredentials($sAuthUser, '', Session::Get('login_mode'), 'external'))
 			{
-				$_SESSION['auth_user'] = $sAuthUser;
 				$iErrorCode = LoginWebPage::EXIT_CODE_WRONGCREDENTIALS;
 				return LoginWebPage::LOGIN_FSM_ERROR;
 			}
diff --git a/application/loginform.class.inc.php b/application/loginform.class.inc.php
index 9030fbe77..d8e5bc8ee 100644
--- a/application/loginform.class.inc.php
+++ b/application/loginform.class.inc.php
@@ -68,7 +68,6 @@ class LoginForm extends AbstractLoginFSMExtension implements iLoginUIExtension
 			$sAuthPwd = utils::ReadPostedParam('auth_pwd', null, 'raw_data');
 			if (!UserRights::CheckCredentials($sAuthUser, $sAuthPwd, Session::Get('login_mode'), 'internal'))
 			{
-				$_SESSION['auth_user'] = $sAuthUser;
 				$iErrorCode = LoginWebPage::EXIT_CODE_WRONGCREDENTIALS;
 				return LoginWebPage::LOGIN_FSM_ERROR;
 			}
diff --git a/application/loginurl.class.inc.php b/application/loginurl.class.inc.php
index 94a25924f..364f07c32 100644
--- a/application/loginurl.class.inc.php
+++ b/application/loginurl.class.inc.php
@@ -57,7 +57,6 @@ class LoginURL extends AbstractLoginFSMExtension
 			$sAuthPwd = utils::ReadParam('auth_pwd', null, false, 'raw_data');
 			if (!UserRights::CheckCredentials($sAuthUser, $sAuthPwd, Session::Get('login_mode'), 'internal'))
 			{
-				$_SESSION['auth_user'] = $sAuthUser;
 				$iErrorCode = LoginWebPage::EXIT_CODE_WRONGCREDENTIALS;
 				return LoginWebPage::LOGIN_FSM_ERROR;
 			}