diff --git a/is-monitor-frontend/src/app/is.service.ts b/is-monitor-frontend/src/app/is.service.ts
index 0ad81ba..0d63c22 100644
--- a/is-monitor-frontend/src/app/is.service.ts
+++ b/is-monitor-frontend/src/app/is.service.ts
@@ -2,7 +2,7 @@ import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 import { Observable, of } from 'rxjs';
 import { catchError } from 'rxjs/operators';
-import { ISType } from './ISType';
+import { TypeDefinition } from './is-model/types/TypeDefinition';
 import { types } from './types';
 import { list } from './list';
 
@@ -39,12 +39,12 @@ export class IsService {
     };
   }
 
-  public getResourceTypes(callback: (isTypes: ISType[]) => void): void {
+  public getResourceTypes(callback: (isTypes: TypeDefinition[]) => void): void {
     const url = this.typesURL + '/Resource?polymorphic=true&gcube-token=' + this.token;
     // const observable: Observable<ISType[]> = of(types);
-    const observable: Observable<ISType[]> = this.httpClient.get<ISType[]>(url);
+    const observable: Observable<TypeDefinition[]> = this.httpClient.get<TypeDefinition[]>(url);
     observable.pipe(
-      catchError(this.handleError<ISType[]>('getResourceTypes()', types))
+      catchError(this.handleError<TypeDefinition[]>('getResourceTypes()', types))
     ).subscribe(data => callback(data));
   }