diff --git a/src/agent.py b/src/agent.py
index 79aeaae..37144eb 100644
--- a/src/agent.py
+++ b/src/agent.py
@@ -739,7 +739,9 @@ class Executor:
 
     def do_ensure_sprint(self, p: dict, cmd: dict) -> dict:
         key, want = p["key"], p["sprint"]
-        cur = ((self.jira.get(AGILE + "/issue/%s" % key, fields="sprint")["fields"].get("sprint") or {}).get("name"))
+        # у задачи без спринта Jira банка отвечает без ключа fields (#13)
+        issue = self.jira.get(AGILE + "/issue/%s" % key, fields="sprint")
+        cur = (((issue.get("fields") or {}).get("sprint")) or {}).get("name")
         if want == "backlog":                 # в бэклог доска не нужна
             if cur is None:
                 return self._out("done", {"sprint": None, "changed": False})
diff --git a/tests/fake_jira.py b/tests/fake_jira.py
index bef6359..90df453 100644
--- a/tests/fake_jira.py
+++ b/tests/fake_jira.py
@@ -248,6 +248,8 @@ class FakeJira:
         if m:
             name = self.issues[m.group(1)]["sprint"]
             sp = next((s for s in self.sprints if s["name"] == name), None)
+            if sp is None:                           # как Jira банка (13.10.2026): без спринта ключа fields в ответе нет
+                return 200, {"key": m.group(1)}
             return 200, {"key": m.group(1), "fields": {"sprint": sp}}
         return 404, {"errorMessages": ["нет маршрута %s %s" % (method, p)]}
 
diff --git a/tests/test_executor_links.py b/tests/test_executor_links.py
index 6fa0073..2b41fbc 100644
--- a/tests/test_executor_links.py
+++ b/tests/test_executor_links.py
@@ -153,6 +153,16 @@ class ExecutorLinksTest(unittest.TestCase):
         self.assertEqual(again["result"], {"sprint": "Спринт 2", "changed": False})
         self.assertEqual(again["jira_calls"], 1)
 
+    def test_sprint_issue_without_sprint_has_no_fields(self):
+        """#13: у задачи без спринта Jira банка отвечает без ключа fields — это «спринта нет», а не ошибка."""
+        self.assertIsNone(self.fake.issues["AURORA-1"]["sprint"])
+        backlog = self.run_cmd("ensure_sprint", key="AURORA-1", sprint="backlog")
+        self.assertEqual(backlog["status"], "done")
+        self.assertEqual(backlog["result"], {"sprint": None, "changed": False})
+        out = self.run_cmd("ensure_sprint", key="AURORA-1", sprint="Спринт 2")
+        self.assertEqual(out["status"], "done")
+        self.assertEqual(self.fake.issues["AURORA-1"]["sprint"], "Спринт 2")
+
     def test_sprint_pagination(self):
         for i in range(3, 58):                       # 57 спринтов: доска отдаёт по 50, нужны две страницы
             self.fake.sprints.append({"id": i, "name": "Спринт %d" % i, "state": "future"})