diff --git a/aiohasupervisor/models/jobs.py b/aiohasupervisor/models/jobs.py
index 2ef6223..0389025 100644
--- a/aiohasupervisor/models/jobs.py
+++ b/aiohasupervisor/models/jobs.py
@@ -45,6 +45,7 @@ class JobError(ResponseData):
 
     type: str
     message: str
+    stage: str | None
 
 
 @dataclass(slots=True, frozen=True)
diff --git a/tests/fixtures/jobs_info.json b/tests/fixtures/jobs_info.json
index 3c6667f..ea27d8d 100644
--- a/tests/fixtures/jobs_info.json
+++ b/tests/fixtures/jobs_info.json
@@ -48,7 +48,8 @@
         "errors": [
           {
             "type": "BackupInvalidError",
-            "message": "Invalid password for backup cfddca18"
+            "message": "Invalid password for backup cfddca18",
+            "stage": "restore_backup"
           }
         ],
         "created": "2025-01-30T20:55:15.000000+00:00",
diff --git a/tests/fixtures/jobs_info_no_stage.json b/tests/fixtures/jobs_info_no_stage.json
new file mode 100644
index 0000000..3f9d509
--- /dev/null
+++ b/tests/fixtures/jobs_info_no_stage.json
@@ -0,0 +1,25 @@
+{
+  "result": "ok",
+  "data": {
+    "ignore_conditions": ["free_space"],
+    "jobs": [
+      {
+        "name": "test_job_error_no_stage",
+        "reference": "test123",
+        "uuid": "3febe59311f94d6ba36f6f9f73357ca9",
+        "progress": 0,
+        "stage": null,
+        "done": true,
+        "errors": [
+          {
+            "type": "TestError",
+            "message": "Test error without stage field",
+            "stage": null
+          }
+        ],
+        "created": "2025-01-30T20:55:12.859349+00:00",
+        "child_jobs": []
+      }
+    ]
+  }
+}
diff --git a/tests/test_jobs.py b/tests/test_jobs.py
index a21b6f2..aa72a49 100644
--- a/tests/test_jobs.py
+++ b/tests/test_jobs.py
@@ -42,6 +42,7 @@ async def test_jobs_info(
     assert info.jobs[1].reference == "cfddca18"
     assert info.jobs[1].errors[0].type == "BackupInvalidError"
     assert info.jobs[1].errors[0].message == "Invalid password for backup cfddca18"
+    assert info.jobs[1].errors[0].stage == "restore_backup"
 
 
 async def test_jobs_set_options(
@@ -112,3 +113,22 @@ async def test_jobs_delete_job(
     assert responses.requests.keys() == {
         ("DELETE", URL(f"{SUPERVISOR_URL}/jobs/2febe59311f94d6ba36f6f9f73357ca8"))
     }
+
+
+async def test_jobs_info_backward_compatibility_no_stage(
+    responses: aioresponses, supervisor_client: SupervisorClient
+) -> None:
+    """Test jobs info API with error lacking stage field for backward compatibility."""
+    responses.get(
+        f"{SUPERVISOR_URL}/jobs/info",
+        status=200,
+        body=load_fixture("jobs_info_no_stage.json"),
+    )
+    info = await supervisor_client.jobs.info()
+    assert info.ignore_conditions == [JobCondition.FREE_SPACE]
+
+    assert info.jobs[0].name == "test_job_error_no_stage"
+    assert info.jobs[0].reference == "test123"
+    assert info.jobs[0].errors[0].type == "TestError"
+    assert info.jobs[0].errors[0].message == "Test error without stage field"
+    assert info.jobs[0].errors[0].stage is None