diff --git a/ghost/admin/app/controllers/members.js b/ghost/admin/app/controllers/members.js
index 0149df9f62..45598c6d5c 100644
--- a/ghost/admin/app/controllers/members.js
+++ b/ghost/admin/app/controllers/members.js
@@ -222,10 +222,10 @@ export default class MembersController extends Controller {
         if (filterParam) {
             // If the provided filter param is a single filter related to newsletter subscription status
             // remove the surrounding brackets to prevent https://github.com/TryGhost/NQL/issues/16
-            const NEWSLETTER_SUBSCRIPTION_STATUS_RE = /^\(subscribed:(?:true|false)[+,]email_disabled:[01]\)$/;
-            const SPECIFIC_NEWSLETTER_SUBSCRIPTION_STATUS_RE = /^\(newsletters\.slug:[^()]+[+,]email_disabled:[01]\)$/;
+            const BRACKETS_SURROUNDED_RE = /^\(.*\)$/;
+            const MULTIPLE_GROUPS_RE = /\).*\(/;
 
-            if (NEWSLETTER_SUBSCRIPTION_STATUS_RE.test(filterParam) || SPECIFIC_NEWSLETTER_SUBSCRIPTION_STATUS_RE.test(filterParam)) {
+            if (BRACKETS_SURROUNDED_RE.test(filterParam) && !MULTIPLE_GROUPS_RE.test(filterParam)) {
                 filterParam = filterParam.slice(1, -1);
             }
         }