diff --git a/src/Client.ts b/src/Client.ts
index 16973ad..84d5ff7 100644
--- a/src/Client.ts
+++ b/src/Client.ts
@@ -604,6 +604,7 @@ export class Client {
             'CHANMODES=,,,nu',
             'CHANTYPES=#&!',
             'MAXTARGETS=1',
+            'MODES=1',
             'PREFIX=(ohv)@%+',
         ]
         if (this.enabledCaps.has('draft/chathistory')) {