diff --git a/airflow/serialization/serialized_objects.py b/airflow/serialization/serialized_objects.py
index d4a4e282ca8631..dc6e4c43b57293 100644
--- a/airflow/serialization/serialized_objects.py
+++ b/airflow/serialization/serialized_objects.py
@@ -557,7 +557,7 @@ def deserialize_dag(cls, encoded_dag: Dict[str, Any]) -> 'SerializedDAG':
                 k = "task_dict"
             elif k == "timezone":
                 v = cls._deserialize_timezone(v)
-            elif k in {"retry_delay", "execution_timeout"}:
+            elif k in {"dagrun_timeout"}:
                 v = cls._deserialize_timedelta(v)
             elif k.endswith("_date"):
                 v = cls._deserialize_datetime(v)
diff --git a/tests/serialization/test_dag_serialization.py b/tests/serialization/test_dag_serialization.py
index cddb6bf9edf256..9dda8785920062 100644
--- a/tests/serialization/test_dag_serialization.py
+++ b/tests/serialization/test_dag_serialization.py
@@ -301,7 +301,7 @@ def validate_deserialized_dag(self, serialized_dag, dag):
             "task_ids", "params", "fileloc", "max_active_runs", "concurrency",
             "is_paused_upon_creation", "doc_md", "safe_dag_id", "is_subdag",
             "catchup", "description", "start_date", "end_date", "parent_dag",
-            "template_searchpath", "_access_control"
+            "template_searchpath", "_access_control", "dagrun_timeout"
         ]
 
         # fields_to_check = dag.get_serialized_fields()