diff --git a/server/server.js b/server/server.js
index feaf7dc3..68fd594a 100755
--- a/server/server.js
+++ b/server/server.js
@@ -40,7 +40,7 @@ const imsLti = require('ims-lti');
 const SAMLStrategy = require('passport-saml').Strategy;
 const LocalStrategy = require('passport-local').Strategy;
 const redis = require('redis');
-const { Issuer, Strategy } = require('openid-client');
+const { Issuer, Strategy, custom } = require('openid-client');
 const expressSession = require('express-session');
 const RedisStore = require('connect-redis')(expressSession);
 const sharedSession = require('express-socket.io-session');