diff --git a/alfa-client/libs/postfach-shared/src/lib/postfach.repository.spec.ts b/alfa-client/libs/postfach-shared/src/lib/postfach.repository.spec.ts
index c67a73ad7045df1fa47596e1e45a0d8b4a35fba1..377719bb0187815df301380b394fd0e924df684f 100644
--- a/alfa-client/libs/postfach-shared/src/lib/postfach.repository.spec.ts
+++ b/alfa-client/libs/postfach-shared/src/lib/postfach.repository.spec.ts
@@ -90,19 +90,19 @@ describe('PostfachRepository', () => {
     });
   });
 
-  describe('setHasNewPostfachNachrichten', () => {
+  describe('markPostfachAsUnread', () => {
     const postfachMailListResource: PostfachMailListResource = createPostfachMailListResource([
       PostfachMailListLinkRel.SET_HAS_NEW_POSTFACH_NACHRICHT,
     ]);
 
     it('should call resourceFactory with resource', () => {
-      repository.setHasNewPostfachNachrichten(postfachMailListResource);
+      repository.markPostfachAsUnread(postfachMailListResource);
 
       expect(resourceFactory.from).toHaveBeenCalledWith(postfachMailListResource);
     });
 
     it('should call resourceWrapper with link', () => {
-      repository.setHasNewPostfachNachrichten(postfachMailListResource);
+      repository.markPostfachAsUnread(postfachMailListResource);
 
       expect(resourceWrapper.put).toHaveBeenCalledWith(PostfachMailListLinkRel.SET_HAS_NEW_POSTFACH_NACHRICHT, {
         hasNewPostfachNachricht: true,
diff --git a/alfa-client/libs/postfach-shared/src/lib/postfach.repository.ts b/alfa-client/libs/postfach-shared/src/lib/postfach.repository.ts
index 76696a94d78a5c640114e98f045018f022e831ca..8a8b03f3d3e046197489b035ef6071b8026178cd 100644
--- a/alfa-client/libs/postfach-shared/src/lib/postfach.repository.ts
+++ b/alfa-client/libs/postfach-shared/src/lib/postfach.repository.ts
@@ -42,7 +42,7 @@ export class PostfachRepository {
     });
   }
 
-  public setHasNewPostfachNachrichten(postfachNachrichtenList: PostfachMailListResource): Observable<unknown> {
+  public markPostfachAsUnread(postfachNachrichtenList: PostfachMailListResource): Observable<unknown> {
     return this.resourceFactory.from(postfachNachrichtenList).put(PostfachMailListLinkRel.SET_HAS_NEW_POSTFACH_NACHRICHT, {
       hasNewPostfachNachricht: true,
     });
diff --git a/alfa-client/libs/postfach-shared/src/lib/postfach.service.spec.ts b/alfa-client/libs/postfach-shared/src/lib/postfach.service.spec.ts
index 08fe1caa948dd2a6c4f4c200d45d2b331bdd87af..f56688a6e9631052cc6ae12b4b1a173e8e1eda30 100644
--- a/alfa-client/libs/postfach-shared/src/lib/postfach.service.spec.ts
+++ b/alfa-client/libs/postfach-shared/src/lib/postfach.service.spec.ts
@@ -463,13 +463,13 @@ describe('PostfachService', () => {
   describe('setPostfachNachrichtListAsUnread', () => {
     beforeEach(() => {
       service._navigateToCurrentVorgang = jest.fn();
-      repository.setHasNewPostfachNachrichten = jest.fn().mockReturnValue(of(null));
+      repository.markPostfachAsUnread = jest.fn().mockReturnValue(of(null));
     });
 
-    it('should set hasNewPostfachNachrichten', () => {
+    it('should mark postfach as unread', () => {
       service.setPostfachNachrichtListAsUnread();
 
-      expect(repository.setHasNewPostfachNachrichten).toHaveBeenCalled();
+      expect(repository.markPostfachAsUnread).toHaveBeenCalled();
     });
 
     it('should navigate to vorgang', () => {
diff --git a/alfa-client/libs/postfach-shared/src/lib/postfach.service.ts b/alfa-client/libs/postfach-shared/src/lib/postfach.service.ts
index 64c238ddfa7e4609433ef21659d44ef364f3f166..3abb5760ccdbb06cbd42c744e27f5b63f396d763 100644
--- a/alfa-client/libs/postfach-shared/src/lib/postfach.service.ts
+++ b/alfa-client/libs/postfach-shared/src/lib/postfach.service.ts
@@ -291,7 +291,7 @@ export class PostfachService {
 
   public setPostfachNachrichtListAsUnread() {
     this.repository
-      .setHasNewPostfachNachrichten(this.postfachMailList$.value.resource)
+      .markPostfachAsUnread(this.postfachMailList$.value.resource)
       .pipe(take(1))
       .subscribe(() => {
         this._navigateToCurrentVorgang();