diff --git a/dmp-frontend/src/app/core/model/auth/principal.ts b/dmp-frontend/src/app/core/model/auth/principal.ts
index c0012e7cd..27609c091 100644
--- a/dmp-frontend/src/app/core/model/auth/principal.ts
+++ b/dmp-frontend/src/app/core/model/auth/principal.ts
@@ -19,6 +19,7 @@ export interface AppPrincipalInfo{
 	notBefore: Date;
 	authenticatedAt: Date;
 	expiresAt: Date;
+	userId: Guid;
 	more: Record<string, string[]>
 }
 export interface UserProfileInfo {
diff --git a/dmp-frontend/src/app/core/services/auth/auth.service.ts b/dmp-frontend/src/app/core/services/auth/auth.service.ts
index 66238f10a..a69d35d4d 100644
--- a/dmp-frontend/src/app/core/services/auth/auth.service.ts
+++ b/dmp-frontend/src/app/core/services/auth/auth.service.ts
@@ -125,9 +125,9 @@ export class AuthService extends BaseService {
 		if (
 			this.appAccount &&
 			this.appAccount.principal &&
-			this.appAccount.principal.subject
+			this.appAccount.principal.userId
 		) {
-			return this.appAccount.principal.subject;
+			return this.appAccount.principal.userId;
 		}
 		return null;
 	}