diff --git a/api/core/workflow/nodes/answer/answer_stream_generate_router.py b/api/core/workflow/nodes/answer/answer_stream_generate_router.py
index 5e6de8fb15..bbd1f88867 100644
--- a/api/core/workflow/nodes/answer/answer_stream_generate_router.py
+++ b/api/core/workflow/nodes/answer/answer_stream_generate_router.py
@@ -152,6 +152,7 @@ class AnswerStreamGeneratorRouter:
                 NodeType.ANSWER.value,
                 NodeType.IF_ELSE.value,
                 NodeType.QUESTION_CLASSIFIER.value,
+                NodeType.ITERATION.value,
             }:
                 answer_dependencies[answer_node_id].append(source_node_id)
             else: