diff --git a/lemonldap-ng-common/lib/Lemonldap/NG/Common/Conf/DefaultValues.pm b/lemonldap-ng-common/lib/Lemonldap/NG/Common/Conf/DefaultValues.pm
index de7922fd6..0a17b7608 100644
--- a/lemonldap-ng-common/lib/Lemonldap/NG/Common/Conf/DefaultValues.pm
+++ b/lemonldap-ng-common/lib/Lemonldap/NG/Common/Conf/DefaultValues.pm
@@ -41,6 +41,7 @@ sub defaultValues {
         'checkXSS'                       => 1,
         'confirmFormMethod'              => 'post',
         'contextSwitchingIdRule'         => 1,
+        'contextSwitchingPrefix'         => 'switching',
         'contextSwitchingRule'           => 0,
         'contextSwitchingStopWithLogout' => 1,
         'cookieName'                     => 'lemonldap',
diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
index ae8ff5de1..34edccc3f 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
@@ -1004,6 +1004,10 @@ qr/(?:(?:https?):\/\/(?:(?:(?:(?:(?:(?:[a-zA-Z0-9][-a-zA-Z0-9]*)?[a-zA-Z0-9])[.]
             },
             'type' => 'text'
         },
+        'contextSwitchingPrefix' => {
+            'default' => 'switching',
+            'type'    => 'text'
+        },
         'contextSwitchingRule' => {
             'default' => 0,
             'type'    => 'boolOrExpr'
diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
index 37dab12b2..e5a40f49a 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
@@ -550,6 +550,12 @@ sub attributes {
             documentation => 'Stop context switching by logout',
             flags         => 'p',
         },
+        contextSwitchingPrefix => {
+            type          => 'text',
+            default       => 'switching',
+            documentation => 'Prefix to store real session Id',
+            flags         => 'p',
+        },
         decryptValueRule => {
             type          => 'boolOrExpr',
             default       => 0,
diff --git a/lemonldap-ng-manager/t/80-attributes.t b/lemonldap-ng-manager/t/80-attributes.t
index b413726a7..4b9838b52 100644
--- a/lemonldap-ng-manager/t/80-attributes.t
+++ b/lemonldap-ng-manager/t/80-attributes.t
@@ -66,7 +66,7 @@ my @notManagedAttributes = (
     # Other ini-only prms
     'checkTime',           'status', 'soapProxyUrn',
     'impersonationPrefix', 'pdataDomain',
-    'mySessionAuthorizedRWKeys',
+    'mySessionAuthorizedRWKeys', 'contextSwitchingPrefix'
 );
 
 # Words used either as attribute name and node title
diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/ContextSwitching.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/ContextSwitching.pm
index 9b0af3abf..e5a9f6cca 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/ContextSwitching.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/ContextSwitching.pm
@@ -75,7 +75,7 @@ sub init {
 sub display {
     my ( $self, $req ) = @_;
     my $realSessionId =
-      $req->userData->{"$self->{conf}->{impersonationPrefix}_session_id"};
+      $req->userData->{"$self->{conf}->{contextSwitchingPrefix}_session_id"};
     my $realSession;
     unless ( $realSession = $self->p->getApacheSession($realSessionId) ) {
         $self->userLogger->info(
@@ -85,14 +85,14 @@ sub display {
 
     # Check access rules
     unless ( $self->rule->( $req, $req->userData )
-        || $req->userData->{"$self->{conf}->{impersonationPrefix}_session_id"} )
+        || $req->userData->{"$self->{conf}->{contextSwitchingPrefix}_session_id"} )
     {
         $self->userLogger->warn('ContextSwitching service NOT authorized');
         return $self->p->do( $req,
             [ sub { PE_IMPERSONATION_SERVICE_NOT_ALLOWED } ] );
     }
 
-    if ( $req->userData->{"$self->{conf}->{impersonationPrefix}_session_id"} ) {
+    if ( $req->userData->{"$self->{conf}->{contextSwitchingPrefix}_session_id"} ) {
         $self->logger->debug('Request to stop ContextSwitching');
         if ( $self->conf->{contextSwitchingStopWithLogout} ) {
             $self->userLogger->notice("Stop ContextSwitching for $req->{user}");
@@ -233,7 +233,7 @@ sub _switchContext {
         $raz = 1;
     }
 
-    $req->sessionInfo->{"$self->{conf}->{impersonationPrefix}_session_id"} =
+    $req->sessionInfo->{"$self->{conf}->{contextSwitchingPrefix}_session_id"} =
       $realSessionId;
 
     if ($raz) {
@@ -263,7 +263,7 @@ sub _abortImpersonation {
     my ( $self, $req, $spoofId, $realId, $abort ) = @_;
     my $type = $abort ? 'sessionInfo' : 'userData';
     my $realSessionId =
-      $req->{$type}->{"$self->{conf}->{impersonationPrefix}_session_id"};
+      $req->{$type}->{"$self->{conf}->{contextSwitchingPrefix}_session_id"};
     my $session;
     unless ( $session = $self->p->getApacheSession($realSessionId) ) {
         $self->userLogger->info("Session $session expired");
@@ -293,7 +293,7 @@ sub _abortImpersonation {
     $req->urldc( $self->conf->{portal} );
     $req->id($realSessionId);
     $self->p->buildCookie($req);
-    delete $req->{$type}->{"$self->{conf}->{impersonationPrefix}_session_id"};
+    delete $req->{$type}->{"$self->{conf}->{contextSwitchingPrefix}_session_id"};
 
     return $req;
 }
@@ -301,7 +301,7 @@ sub _abortImpersonation {
 sub displayLink {
     my ( $self, $req ) = @_;
     return 'OFF'
-      if $req->userData->{"$self->{conf}->{impersonationPrefix}_session_id"};
+      if $req->userData->{"$self->{conf}->{contextSwitchingPrefix}_session_id"};
     return 'ON' if $self->rule->( $req, $req->userData );
 }
 
diff --git a/lemonldap-ng-portal/t/68-ContextSwitching-with-Logout.t b/lemonldap-ng-portal/t/68-ContextSwitching-with-Logout.t
index eb96f1d81..0bcc30b21 100644
--- a/lemonldap-ng-portal/t/68-ContextSwitching-with-Logout.t
+++ b/lemonldap-ng-portal/t/68-ContextSwitching-with-Logout.t
@@ -13,19 +13,19 @@ my $client = LLNG::Manager::Test->new( {
             logLevel                       => 'error',
             authentication                 => 'Demo',
             userDB                         => 'Same',
+            https                          => 0,
             loginHistoryEnabled            => 0,
             brutForceProtection            => 0,
             portalMainLogo                 => 'common/logos/logo_llng_old.png',
             requireToken                   => 1,
             checkUser                      => 1,
-            impersonationPrefix            => 'testPrefix_',
             securedCookie                  => 0,
-            https                          => 0,
             checkUserDisplayPersistentInfo => 0,
             checkUserDisplayEmptyValues    => 0,
             contextSwitchingRule           => 1,
             contextSwitchingIdRule         => 1,
             contextSwitchingStopWithLogout => 1,
+            contextSwitchingPrefix         => 'testPrefix_',
         }
     }
 );
@@ -109,7 +109,7 @@ ok(
 );
 ok(
     $res->[2]->[0] =~
-m%<div class="message message-negative alert"><span trmsg="82"></span>%,
+      m%<div class="message message-negative alert"><span trmsg="82"></span>%,
     'Found "<span trmsg="82">"'
 ) or explain( $res->[2]->[0], '<span trmsg="82">' );
 count(3);