diff --git a/app/models/server/models/LivechatDepartment.js b/app/models/server/models/LivechatDepartment.js
index 080c1975a207c..b5c826dfd55ac 100644
--- a/app/models/server/models/LivechatDepartment.js
+++ b/app/models/server/models/LivechatDepartment.js
@@ -11,6 +11,7 @@ export class LivechatDepartment extends Base {
 
 		this.tryEnsureIndex({ name: 1 });
 		this.tryEnsureIndex({ businessHourId: 1 }, { sparse: true });
+		this.tryEnsureIndex({ type: 1 }, { sparse: true });
 		this.tryEnsureIndex({
 			numAgents: 1,
 			enabled: 1,
diff --git a/app/models/server/models/LivechatTrigger.js b/app/models/server/models/LivechatTrigger.js
index a5380016caddd..41686930707e9 100644
--- a/app/models/server/models/LivechatTrigger.js
+++ b/app/models/server/models/LivechatTrigger.js
@@ -6,6 +6,8 @@ import { Base } from './_Base';
 export class LivechatTrigger extends Base {
 	constructor() {
 		super('livechat_trigger');
+
+		this.tryEnsureIndex({ enabled: 1 });
 	}
 
 	updateById(_id, data) {
diff --git a/ee/app/models/server/models/LivechatUnitMonitors.js b/ee/app/models/server/models/LivechatUnitMonitors.js
index 126bd9cca275c..6963d5c7a6ebb 100644
--- a/ee/app/models/server/models/LivechatUnitMonitors.js
+++ b/ee/app/models/server/models/LivechatUnitMonitors.js
@@ -5,6 +5,9 @@ import { Base } from '../../../../../app/models';
 export class LivechatUnitMonitors extends Base {
 	constructor() {
 		super('livechat_unit_monitors');
+
+		this.tryEnsureIndex({ monitorId: 1 });
+		this.tryEnsureIndex({ unitId: 1 });
 	}
 
 	findByUnitId(unitId) {