diff --git a/src/oidc.js b/src/oidc.js
index 272a4a208..7d3285dab 100644
--- a/src/oidc.js
+++ b/src/oidc.js
@@ -266,6 +266,7 @@ class CloudronAdapter {
                 tmp.redirect_uris = client.loginRedirectUri.split(',').map(s => s.trim()).map(s => url.parse(s).protocol ? s : `https://${app.fqdn}${s}`);
 
                 if (client.logoutRedirectUri) tmp.post_logout_redirect_uris = [ url.parse(client.logoutRedirectUri).protocol ? client.logoutRedirectUri : `https://${app.fqdn}${client.logoutRedirectUri}` ];
+                else tmp.post_logout_redirect_uris = [ `https://${app.fqdn}` ];
             } else {
                 tmp.redirect_uris = client.loginRedirectUri.split(',').map(s => s.trim());