diff --git a/flytekit/models/core/workflow.py b/flytekit/models/core/workflow.py
index cc1ca2694f6..8d8bf9c9ef0 100644
--- a/flytekit/models/core/workflow.py
+++ b/flytekit/models/core/workflow.py
@@ -3,6 +3,7 @@
 
 from flyteidl.core import tasks_pb2
 from flyteidl.core import workflow_pb2 as _core_workflow
+from google.protobuf.wrappers_pb2 import BoolValue
 
 from flytekit.models import common as _common
 from flytekit.models import interface as _interface
@@ -412,7 +413,7 @@ def to_flyte_idl(self) -> _core_workflow.ArrayNode:
             min_successes=self._min_successes,
             min_success_ratio=self._min_success_ratio,
             execution_mode=self._execution_mode,
-            is_original_sub_node_interface=self._is_original_sub_node_interface,
+            is_original_sub_node_interface=BoolValue(value=self._is_original_sub_node_interface),
         )
 
     @classmethod