diff --git a/src/routes/oauth2.js b/src/routes/oauth2.js
index bcad4b61b..b17ad8e2a 100644
--- a/src/routes/oauth2.js
+++ b/src/routes/oauth2.js
@@ -232,8 +232,6 @@ function loginForm(req, res) {
             return render('External Application', '/api/v1/cloudron/avatar');
         } else if (appId.indexOf('addon-oauth-') === 0) {
             appId = appId.slice('addon-oauth-'.length);
-        } else if (appId.indexOf('addon-simpleauth-') === 0) {
-            appId = appId.slice('addon-simpleauth-'.length);
         } else if (appId.indexOf('proxy-') === 0) {
             appId = appId.slice('proxy-'.length);
         }