diff --git a/app/chain/subscribe.py b/app/chain/subscribe.py
index 031879211..0b9307e44 100644
--- a/app/chain/subscribe.py
+++ b/app/chain/subscribe.py
@@ -3157,6 +3157,7 @@ class SubscribeChain(ChainBase):
             'year': subscribe.year,
             'type': subscribe.type,
             'season': subscribe.season,
+            'episode_group': subscribe.episode_group,
             'tmdbid': subscribe.tmdbid,
             'imdbid': subscribe.imdbid,
             'tvdbid': subscribe.tvdbid,
diff --git a/tests/test_subscribe_source_keyword.py b/tests/test_subscribe_source_keyword.py
new file mode 100644
index 000000000..812376ffc
--- /dev/null
+++ b/tests/test_subscribe_source_keyword.py
@@ -0,0 +1,27 @@
+import json
+from types import SimpleNamespace
+
+from app.chain.subscribe import SubscribeChain
+from app.schemas.types import MediaType
+
+
+def test_subscribe_source_keyword_includes_episode_group():
+    subscribe = SimpleNamespace(
+        id=1,
+        name="Test Show",
+        year="2026",
+        type=MediaType.TV.value,
+        season=1,
+        episode_group="group-season-03",
+        tmdbid=12345,
+        imdbid=None,
+        tvdbid=None,
+        doubanid=None,
+        bangumiid=None,
+    )
+
+    source = SubscribeChain.get_subscribe_source_keyword(subscribe)
+    payload = json.loads(source.split("|", 1)[1])
+
+    assert payload["episode_group"] == "group-season-03"
+    assert SubscribeChain.parse_subscribe_source_keyword(source)["episode_group"] == "group-season-03"