diff --git a/inc/agent.class.php b/inc/agent.class.php
index 34be3325..b84ed03d 100644
--- a/inc/agent.class.php
+++ b/inc/agent.class.php
@@ -1396,7 +1396,7 @@ protected function enrollByInvitationToken($input) {
       $input['version']                   = $version;
       $input['users_id']                  = $agentAccount->getID();
       $input['mdm_type']                  = $mdmType;
-      $input['$systemPermission']         = $systemPermission;
+      $input['systemPermission']          = $systemPermission;
       return $input;
 
    }