diff --git a/client/src/app/core/repositories/projector/projector-repository.service.ts b/client/src/app/core/repositories/projector/projector-repository.service.ts
index c4e3a46d0..c0f718110 100644
--- a/client/src/app/core/repositories/projector/projector-repository.service.ts
+++ b/client/src/app/core/repositories/projector/projector-repository.service.ts
@@ -130,9 +130,9 @@ export class ProjectorRepositoryService extends BaseRepository<ViewProjector, Pr
 
     /**
      * Sets the given projector as the new reference projector for all projectors
-     * @param projector the new default projector id
+     * @param projector the new reference projector id
      */
-    public async setDefaultProjector(projector_id: number): Promise<void> {
-        await this.http.post<void>(`/rest/core/projector/${projector_id}/set_default_projector/`);
+    public async setReferenceProjector(projector_id: number): Promise<void> {
+        await this.http.post<void>(`/rest/core/projector/${projector_id}/set_reference_projector/`);
     }
 }
diff --git a/client/src/app/site/projector/components/projector-list-entry/projector-list-entry.component.ts b/client/src/app/site/projector/components/projector-list-entry/projector-list-entry.component.ts
index 2b059ad1d..70799af51 100644
--- a/client/src/app/site/projector/components/projector-list-entry/projector-list-entry.component.ts
+++ b/client/src/app/site/projector/components/projector-list-entry/projector-list-entry.component.ts
@@ -75,7 +75,7 @@ export class ProjectorListEntryComponent extends BaseViewComponent implements On
      * Handler to set the selected projector as CLOS reference
      */
     public onSetAsClosRef(): void {
-        this.repo.setDefaultProjector(this.projector.id);
+        this.repo.setReferenceProjector(this.projector.id);
     }
 
     /**
diff --git a/openslides/core/views.py b/openslides/core/views.py
index 4ccf1290d..6389adff7 100644
--- a/openslides/core/views.py
+++ b/openslides/core/views.py
@@ -132,7 +132,7 @@ class ProjectorViewSet(ModelViewSet):
             "destroy",
             "control_view",
             "set_scroll",
-            "set_default_projector",
+            "set_reference_projector",
             "project",
         ):
             result = has_perm(self.request.user, "core.can_see_projector") and has_perm(
@@ -330,9 +330,9 @@ class ProjectorViewSet(ModelViewSet):
         )
 
     @detail_route(methods=["post"])
-    def set_default_projector(self, request, pk):
+    def set_reference_projector(self, request, pk):
         """
-        REST API operation to set the projector with the given pk as the new default.
+        REST API operation to set the projector with the given pk as the new reference projector for all projectors.
         """
         reference_projector = self.get_object()
         for projector in self.queryset.all():
diff --git a/tests/integration/core/test_views.py b/tests/integration/core/test_views.py
index 0d96d51ef..b6c982907 100644
--- a/tests/integration/core/test_views.py
+++ b/tests/integration/core/test_views.py
@@ -106,7 +106,7 @@ def test_project_view(client):
 
 
 @pytest.mark.django_db(transaction=False)
-def test_set_default_projector(client):
+def test_set_reference_projector(client):
     client.login(username="admin", password="admin")
     Projector.objects.create(name="test_name_rePaODETymV4eFM3aOBD")
     reference_projector = Projector.objects.create(
@@ -114,7 +114,7 @@ def test_set_default_projector(client):
     )
 
     response = client.post(
-        reverse("projector-set-default-projector", args=[reference_projector.pk])
+        reverse("projector-set-reference-projector", args=[reference_projector.pk])
     )
     assert response.status_code == 200