diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Issuer/CAS.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Issuer/CAS.pm
index 6eac15f7f..cd548bcdf 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Issuer/CAS.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Issuer/CAS.pm
@@ -16,10 +16,6 @@ our $VERSION = '2.0.0';
 extends 'Lemonldap::NG::Portal::Main::Issuer',
   'Lemonldap::NG::Portal::Lib::CAS';
 
-# INTERFACE
-
-sub beforeAuth { 'exportRequestParameters' }
-
 # INITIALIZATION
 
 sub init {
@@ -84,7 +80,11 @@ sub run {
         my $casServiceTicket;
 
         # Renew
-        if ( $renew and $renew eq 'true' ) {
+        if (    $renew
+            and $renew eq 'true'
+            and time - $req->sessionInfo->{_utime} >
+            $self->conf->{portalForceAuthnInterval} )
+        {
 
             # Authentication must be replayed
             $self->logger->debug("Authentication renew requested");
@@ -707,17 +707,4 @@ sub _validate2 {
         $casProxyGrantingTicketIOU, $proxies, $attributes );
 }
 
-# Store request parameters in %ENV
-sub exportRequestParameters {
-    my ( $self, $req ) = @_;
-
-    foreach my $param (qw/service renew gateway/) {
-        if ( $req->param($param) ) {
-            $req->env->{ "llng_cas_" . $param } = $req->param($param);
-        }
-    }
-
-    return PE_OK;
-}
-
 1;
diff --git a/lemonldap-ng-portal/t/31-Auth-and-issuer-CAS-with-choice.t b/lemonldap-ng-portal/t/31-Auth-and-issuer-CAS-with-choice.t
index 1e7effafb..956b06b8a 100644
--- a/lemonldap-ng-portal/t/31-Auth-and-issuer-CAS-with-choice.t
+++ b/lemonldap-ng-portal/t/31-Auth-and-issuer-CAS-with-choice.t
@@ -132,6 +132,7 @@ SKIP: {
 
     # Back to SP
     switch ('sp');
+
     # Follow redirection to CAS app
     ok(
         $res = $sp->_get(
@@ -216,11 +217,12 @@ SKIP: {
         'Follow redirection'
 
     );
-    ($query) = expectRedirection($res,qr#http://auth.sp.com/?\?(ticket=.*)$#);
+    ($query) =
+      expectRedirection( $res, qr#http://auth.sp.com/?\?(ticket=.*)$# );
 
     # Follow redirection to CAS app
     switch ('sp');
-    ok($res=$sp->_get('/',query => $query),'Follow redirection');
+    ok( $res = $sp->_get( '/', query => $query ), 'Follow redirection' );
 
     expectCookie($res);
 
@@ -313,18 +315,19 @@ sub issuer {
                     demo => 'Demo;Demo;Demo',
                     sql  => 'DBI;DBI;DBI',
                 },
-                dbiAuthChain           => 'dbi:SQLite:dbname=t/userdb.db',
-                dbiAuthUser            => '',
-                dbiAuthPassword        => '',
-                dbiAuthTable           => 'users',
-                dbiAuthLoginCol        => 'user',
-                dbiAuthPasswordCol     => 'password',
-                dbiAuthPasswordHash    => '',
-                issuerDBCASActivation  => 1,
-                casAttr                => 'uid',
-                casAttributes          => { cn => 'cn', uid => 'uid', },
-                casAccessControlPolicy => 'none',
-                multiValuesSeparator   => ';',
+                dbiAuthChain             => 'dbi:SQLite:dbname=t/userdb.db',
+                dbiAuthUser              => '',
+                dbiAuthPassword          => '',
+                dbiAuthTable             => 'users',
+                dbiAuthLoginCol          => 'user',
+                dbiAuthPasswordCol       => 'password',
+                dbiAuthPasswordHash      => '',
+                issuerDBCASActivation    => 1,
+                casAttr                  => 'uid',
+                casAttributes            => { cn => 'cn', uid => 'uid', },
+                casAccessControlPolicy   => 'none',
+                multiValuesSeparator     => ';',
+                portalForceAuthnInterval => -1,
             }
         }
     );