diff --git a/node-services/supervisor/src/domain/client-side/configService.ts b/node-services/supervisor/src/domain/client-side/configService.ts
index 079e63f608..2ba9382267 100644
--- a/node-services/supervisor/src/domain/client-side/configService.ts
+++ b/node-services/supervisor/src/domain/client-side/configService.ts
@@ -94,12 +94,10 @@ export default class ConfigService {
         this.save();
     }
 
-    public async deleteSupervisedEntity(entityId: any): Promise<void> {
+    public async deleteSupervisedEntity(entityId: string): Promise<void> {
         await this.supervisorDatabaseService.deleteSupervisedEntity(entityId);
 
-        const index = this.supervisorConfig.entitiesToSupervise.findIndex(
-            (entity) => entity.entityId === entityId.entityId
-        );
+        const index = this.supervisorConfig.entitiesToSupervise.findIndex((entity) => entity.entityId === entityId);
         if (index >= 0) {
             this.supervisorConfig.entitiesToSupervise.splice(index);
         }
diff --git a/node-services/supervisor/src/domain/server-side/supervisorDatabaseService.ts b/node-services/supervisor/src/domain/server-side/supervisorDatabaseService.ts
index c641cfabc8..33e0d2c6a5 100644
--- a/node-services/supervisor/src/domain/server-side/supervisorDatabaseService.ts
+++ b/node-services/supervisor/src/domain/server-side/supervisorDatabaseService.ts
@@ -10,6 +10,7 @@
 import {Db, MongoClient} from 'mongodb';
 import {Logger} from 'winston';
 import {MongoConfig} from './MongoConfig';
+import {EntityToSupervise} from '../application/entityToSupervise';
 
 export default class SupervisorDatabaseService {
     logger: Logger;
@@ -65,7 +66,7 @@ export default class SupervisorDatabaseService {
         return await this.mongoDB.collection('supervisedEntities').find().toArray();
     }
 
-    public async saveSupervisedEntity(supervisedEntity: any): Promise<void> {
+    public async saveSupervisedEntity(supervisedEntity: EntityToSupervise): Promise<void> {
         try {
             const query = {entityId: supervisedEntity.entityId};
             const update = {
@@ -79,7 +80,7 @@ export default class SupervisorDatabaseService {
         }
     }
 
-    public async getSupervisedEntity(id: any): Promise<any> {
+    public async getSupervisedEntity(id: string): Promise<any> {
         try {
             return await this.mongoDB.collection('supervisedEntities').findOne({entityId: id});
         } catch (error) {
@@ -87,7 +88,7 @@ export default class SupervisorDatabaseService {
         }
     }
 
-    public async deleteSupervisedEntity(id: any): Promise<void> {
+    public async deleteSupervisedEntity(id: string): Promise<void> {
         try {
             await this.mongoDB.collection('supervisedEntities').deleteOne({entityId: id});
         } catch (error) {
diff --git a/node-services/supervisor/src/tests/configService.test.ts b/node-services/supervisor/src/tests/configService.test.ts
index 443d53fb63..c230b87d40 100644
--- a/node-services/supervisor/src/tests/configService.test.ts
+++ b/node-services/supervisor/src/tests/configService.test.ts
@@ -27,6 +27,13 @@ class SupervisorDatabaseServiceStub extends SupervisorDatabaseService {
         }
         this.supervisedEntities.push(supervisedEntity);
     }
+
+    public async deleteSupervisedEntity(id: string): Promise<void> {
+        const index = this.supervisedEntities.findIndex((entity) => entity.entityId === id);
+        if (index >= 0) {
+            this.supervisedEntities.splice(index);
+        }
+    }
 }
 
 function getDefaultConfig(): ConfigDTO {
@@ -100,4 +107,26 @@ describe('config service', function () {
             {entityId: 'ENTITY4', supervisors: ['ENTITY1']}
         ]);
     });
+
+    it('Delete supervised Entity', async function () {
+        const defaultConfig = getDefaultConfig();
+        const supervisorDatabaseService = new SupervisorDatabaseServiceStub();
+        supervisorDatabaseService.supervisedEntities = [
+            {entityId: 'ENTITY4', supervisors: ['ENTITY1']},
+            {entityId: 'ENTITY3', supervisors: ['ENTITY2']}
+        ];
+
+        const configService = new ConfigService(supervisorDatabaseService, defaultConfig, null, logger);
+
+        await configService.synchronizeWithMongoDb();
+        expect(configService.getSupervisorConfig().entitiesToSupervise).toEqual([
+            {entityId: 'ENTITY4', supervisors: ['ENTITY1']},
+            {entityId: 'ENTITY3', supervisors: ['ENTITY2']}
+        ]);
+
+        await configService.deleteSupervisedEntity('ENTITY3');
+        expect(configService.getSupervisorConfig().entitiesToSupervise).toEqual([
+            {entityId: 'ENTITY4', supervisors: ['ENTITY1']}
+        ]);
+    });
 });