diff --git a/lemonldap-ng-common/lib/Lemonldap/NG/Common/Logger/_Duplicate.pm b/lemonldap-ng-common/lib/Lemonldap/NG/Common/Logger/_Duplicate.pm
index e0376b9c0..f1e51b4f3 100644
--- a/lemonldap-ng-common/lib/Lemonldap/NG/Common/Logger/_Duplicate.pm
+++ b/lemonldap-ng-common/lib/Lemonldap/NG/Common/Logger/_Duplicate.pm
@@ -1,6 +1,7 @@
 package Lemonldap::NG::Common::Logger::_Duplicate;
 
 use strict;
+use Scalar::Util 'weaken';
 
 our $VERSION = '2.0.6';
 
@@ -11,6 +12,7 @@ sub new {
     die $@ if ($@);
     $self->{logger} = $args{logger}->new(@_);
     $self->{dup}    = $args{dup} or die 'Missing dup';
+    weaken($self->{dup});
     return $self;
 }
 
diff --git a/lemonldap-ng-common/lib/Lemonldap/NG/Common/Module.pm b/lemonldap-ng-common/lib/Lemonldap/NG/Common/Module.pm
index ce71bea42..89f7b201e 100644
--- a/lemonldap-ng-common/lib/Lemonldap/NG/Common/Module.pm
+++ b/lemonldap-ng-common/lib/Lemonldap/NG/Common/Module.pm
@@ -11,9 +11,18 @@ has p => ( is => 'rw', weak_ref => 1 );
 # Lemonldap::NG configuration hash ref
 has conf => ( is => 'rw', weak_ref => 1 );
 
-has logger => ( is => 'rw', lazy => 1, default => sub { $_[0]->{p}->logger } );
-has userLogger =>
-  ( is => 'rw', lazy => 1, default => sub { $_[0]->{p}->userLogger } );
+has logger => (
+    is       => 'rw',
+    lazy     => 1,
+    weak_ref => 1,
+    default  => sub { $_[0]->{p}->logger }
+);
+has userLogger => (
+    is       => 'rw',
+    lazy     => 1,
+    weak_ref => 1,
+    default  => sub { $_[0]->{p}->userLogger }
+);
 
 sub error {
     my $self = shift;
diff --git a/lemonldap-ng-common/lib/Lemonldap/NG/Common/PSGI/Router.pm b/lemonldap-ng-common/lib/Lemonldap/NG/Common/PSGI/Router.pm
index b1e0655d9..7cf8dbf9e 100644
--- a/lemonldap-ng-common/lib/Lemonldap/NG/Common/PSGI/Router.pm
+++ b/lemonldap-ng-common/lib/Lemonldap/NG/Common/PSGI/Router.pm
@@ -3,6 +3,7 @@ package Lemonldap::NG::Common::PSGI::Router;
 use Mouse;
 use Lemonldap::NG::Common::PSGI;
 use Lemonldap::NG::Common::PSGI::Constants;
+use Scalar::Util 'weaken';
 
 our $VERSION = '2.0.8';
 
@@ -93,6 +94,7 @@ sub genRoute {
             }
         }
         elsif ( $self->can($dest) ) {
+            weaken($self);
             $routes->{$word} = sub { shift; $self->$dest(@_) };
         }
         else {
diff --git a/lemonldap-ng-handler/lib/Lemonldap/NG/Handler/Main/Reload.pm b/lemonldap-ng-handler/lib/Lemonldap/NG/Handler/Main/Reload.pm
index d7dad20c9..315dbe259 100644
--- a/lemonldap-ng-handler/lib/Lemonldap/NG/Handler/Main/Reload.pm
+++ b/lemonldap-ng-handler/lib/Lemonldap/NG/Handler/Main/Reload.pm
@@ -19,8 +19,8 @@ our @_onReload;
 
 sub onReload {
     my ( $class, $obj, $sub ) = @_;
-    weaken($obj);
     push @_onReload, [ $obj, $sub ];
+    weaken($_onReload[$#_onReload]->[0]);
 }
 
 # CONFIGURATION UPDATE
diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Init.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Init.pm
index 1f99a71da..f3815f5ec 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Init.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Init.pm
@@ -15,6 +15,7 @@ package Lemonldap::NG::Portal::Main;
 use strict;
 use Mouse;
 use Regexp::Assemble;
+use Scalar::Util 'weaken';
 
 # PROPERTIES
 
@@ -92,13 +93,16 @@ has cors => ( is => 'rw' );
 sub init {
     my ( $self, $args ) = @_;
     $args ||= {};
-    $self->localConfig( {
-            %{ Lemonldap::NG::Common::Conf->new( $args->{configStorage} )
-                  ->getLocalConf('portal')
-            },
-            %$args
+    $self->localConfig( {} );
+    {
+        my $h = Lemonldap::NG::Common::Conf->new( $args->{configStorage} )
+          ->getLocalConf('portal');
+        foreach ( keys %$h ) {
+            $self->localConfig->{$_} = $h->{$_};
+            weaken( $self->localConfig->{$_} ) if ref $self->localConfig->{$_};
         }
-    );
+    }
+    $self->localConfig->{$_} = $args->{$_} foreach ( keys %$args );
 
     # Load override messages from lemonldap-ng.ini
     foreach my $k ( keys %{ $self->localConfig } ) {
@@ -179,7 +183,10 @@ sub reloadConf {
     my ( $self, $conf ) = @_;
 
     # Reinitialize $self->conf
-    %{ $self->{conf} } = %{ $self->localConfig };
+    foreach ( keys %{ $self->localConfig } ) {
+        $self->{conf}->{$_} = $self->localConfig->{$_};
+        weaken( $self->{conf}->{$_} ) if ref $self->{conf}->{$_};
+    }
 
     # Reinitialize arrays
     foreach ( qw(_macros _groups), @entryPoints ) {