diff --git a/src/Core/LTIX.php b/src/Core/LTIX.php
index 5f558486..6a7745a0 100644
--- a/src/Core/LTIX.php
+++ b/src/Core/LTIX.php
@@ -434,7 +434,8 @@ public static function setupSession($needed=self::ALL, $session_object=null, $re
         }
 
         // Use returned data to check the validity of the incoming request
-
+        $raw_jwt = false;
+        $jwt = false;
         if ( $LTI11 ) {
             $valid = LTI::verifyKeyAndSecret($post['key'],$row['secret'],self::curPageUrl(), $request_data);
 
@@ -550,6 +551,9 @@ public static function setupSession($needed=self::ALL, $session_object=null, $re
 
             // Just copy across
             if ( U::get($post,'lti13_deeplink') ) $row['lti13_deeplink'] = $post['lti13_deeplink'];
+
+            self::wrapped_session_put($session_object, 'tsugi_jwt', $jwt);
+            // self::wrapped_session_put($session_object, 'tsugi_raw_jwt', $raw_jwt);
         }
 
         // Store the launch path
diff --git a/src/Util/LTI13.php b/src/Util/LTI13.php
index a730beb7..5b6df83e 100644
--- a/src/Util/LTI13.php
+++ b/src/Util/LTI13.php
@@ -10,6 +10,7 @@
  */
 class LTI13 extends LTI {
 
+    const DEPLOYMENT_ID = "https://purl.imsglobal.org/spec/lti/claim/deployment_id";
     const ROLES_CLAIM = "https://purl.imsglobal.org/spec/lti/claim/roles";
     const NAMESANDROLES_CLAIM = "https://purl.imsglobal.org/spec/lti-nrps/claim/namesroleservice";
     const ENDPOINT_CLAIM = "https://purl.imsglobal.org/spec/lti-ags/claim/endpoint";