diff --git a/test/api/v3/integration/groups/POST-groups_invite.test.js b/test/api/v3/integration/groups/POST-groups_invite.test.js
index aab4c50a27..0001e09e3a 100644
--- a/test/api/v3/integration/groups/POST-groups_invite.test.js
+++ b/test/api/v3/integration/groups/POST-groups_invite.test.js
@@ -7,7 +7,7 @@ import {
 } from '../../../../helpers/api-integration/v3';
 
 const INVITES_LIMIT = 100;
-const PARTY_LIMIT_MEMBERS = 30;
+const PARTY_LIMIT_MEMBERS = 29;
 const MAX_EMAIL_INVITES_BY_USER = 200;
 
 describe('Post /groups/:groupId/invite', () => {
@@ -571,7 +571,7 @@ describe('Post /groups/:groupId/invite', () => {
         .to.eventually.be.rejected.and.eql({
           code: 400,
           error: 'BadRequest',
-          message: t('partyExceedsMembersLimit', { maxMembersParty: PARTY_LIMIT_MEMBERS }),
+          message: t('partyExceedsMembersLimit', { maxMembersParty: PARTY_LIMIT_MEMBERS + 1 }),
         });
     }).timeout(10000);
   });
diff --git a/website/common/script/constants.js b/website/common/script/constants.js
index bc569da079..b3510378e0 100644
--- a/website/common/script/constants.js
+++ b/website/common/script/constants.js
@@ -27,7 +27,7 @@ export const SUPPORTED_SOCIAL_NETWORKS = [
 
 export const GUILDS_PER_PAGE = 30; // number of guilds to return per page when using pagination
 
-export const PARTY_LIMIT_MEMBERS = 30;
+export const PARTY_LIMIT_MEMBERS = 29;
 
 export const MINIMUM_PASSWORD_LENGTH = 8;
 export const MAXIMUM_PASSWORD_LENGTH = 64;
diff --git a/website/server/models/group.js b/website/server/models/group.js
index 14ff572c84..c41aa0320b 100644
--- a/website/server/models/group.js
+++ b/website/server/models/group.js
@@ -471,7 +471,7 @@ schema.statics.validateInvitations = async function getInvitationErr (invites, r
     memberCount += totalInvites;
 
     if (memberCount > shared.constants.PARTY_LIMIT_MEMBERS) {
-      throw new BadRequest(res.t('partyExceedsMembersLimit', { maxMembersParty: shared.constants.PARTY_LIMIT_MEMBERS }));
+      throw new BadRequest(res.t('partyExceedsMembersLimit', { maxMembersParty: shared.constants.PARTY_LIMIT_MEMBERS + 1 }));
     }
   }
 };