diff --git a/src/paperless_ai/chat.py b/src/paperless_ai/chat.py
index 8608a9cde..a6eb6f125 100644
--- a/src/paperless_ai/chat.py
+++ b/src/paperless_ai/chat.py
@@ -99,7 +99,6 @@ def _get_document_filtered_retriever(index, doc_ids: set[str], similarity_top_k:
 
             query_top_k = min(max(similarity_top_k, 1), max_top_k)
             allowed_nodes: list[NodeWithScore] = []
-            seen_node_ids: set[str] = set()
 
             while query_top_k <= max_top_k:
                 query_result = index.vector_store.query(