diff --git a/gns3server/api/routes/controller/projects.py b/gns3server/api/routes/controller/projects.py
index 9df7b9be..91021f64 100644
--- a/gns3server/api/routes/controller/projects.py
+++ b/gns3server/api/routes/controller/projects.py
@@ -396,12 +396,12 @@ async def duplicate_project(
 
 
 @router.get("/{project_id}/locked")
-async def locked_project(project: Project = Depends(dep_project)) -> dict:
+async def locked_project(project: Project = Depends(dep_project)) -> bool:
     """
     Returns whether a project is locked or not
     """
 
-    return {"result": project.locked}
+    return project.locked
 
 
 @router.post("/{project_id}/lock", status_code=status.HTTP_204_NO_CONTENT)
diff --git a/tests/api/routes/controller/test_projects.py b/tests/api/routes/controller/test_projects.py
index 7b392742..45b9398d 100644
--- a/tests/api/routes/controller/test_projects.py
+++ b/tests/api/routes/controller/test_projects.py
@@ -513,7 +513,7 @@ async def test_lock_unlock(app: FastAPI, client: AsyncClient, project: Project,
 
     response = await client.get(app.url_path_for("locked_project", project_id=project.id))
     assert response.status_code == status.HTTP_200_OK
-    assert response.json()["result"] is True
+    assert response.json() is True
 
     response = await client.post(app.url_path_for("unlock_project", project_id=project.id))
     assert response.status_code == status.HTTP_204_NO_CONTENT