diff --git a/src/plugins/converse-rai.js b/src/plugins/converse-rai.js
index 702165f91d702077ff099e73512530c66d8bc1a1..b7a1b25393e03f564db153579b697fcf897ea027 100644
--- a/src/plugins/converse-rai.js
+++ b/src/plugins/converse-rai.js
@@ -108,7 +108,7 @@ converse.plugins.add('converse-rai', {
        * @param {string|Array} jids
        * @returns {void}
        */
-      async subscribe(jids) {
+      subscribe(jids) {
         if (!api.settings.get('muc_subscribe_to_rai')) {
           log.error(`You must enable the 'muc_subscribe_to_rai' option before subscribing to a MUC.`);
           return;