diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Conf/DBI.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Conf/DBI.pm
index 705ae3af7d280853756656a25c6121b2737b6c23..d6ea5130695262444a53d7dd5c30486ab4f85c53 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Conf/DBI.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Conf/DBI.pm
@@ -43,7 +43,8 @@ sub lastCfg {
 sub dbh {
     my $self = shift;
     $self->{dbiTable} ||= "lmconfig";
-    return $self->{dbh} ||= DBI->connect_cached(
+    return $self->{dbh} if ( $self->{dbh} and $self->{dbh}->ping );
+    return DBI->connect_cached(
         $self->{dbiChain}, $self->{dbiUser},
         $self->{dbiPassword}, { RaiseError => 1 }
     );
diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm
index ca34355efa41854d4751e87ad9b370f07791f6c1..af697cbf0fe8833b7184fc01c64512b904d3f528 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm
@@ -130,8 +130,8 @@ sub header {
 # CGI.pm overload to add Lemonldap::NG cookie
 sub redirect {
     my $self = shift;
-    if ( $_[0]->{cookie} ) {
-        $self->SUPER::redirect( @_, -cookie => $_[0]->{cookie} );
+    if ( $self->{cookie} ) {
+        $self->SUPER::redirect( @_, -cookie => $self->{cookie} );
     }
     else {
         $self->SUPER::redirect(@_);