diff --git a/services/rag/llamaindex/server.py b/services/rag/llamaindex/server.py
index eeb7ea4..6a2526e 100644
--- a/services/rag/llamaindex/server.py
+++ b/services/rag/llamaindex/server.py
@@ -67,6 +67,7 @@ class TestQueryResponse(BaseModel):
     query: str
     response: str
     sources: list[SourceItem]
+    error: bool
 
 
 @app.get("/health")
@@ -102,7 +103,9 @@ def test_query(payload: TestQueryRequest) -> TestQueryResponse:
 
         response_text = str(result)
         logger.info(f"/api/test-query completed successfully (sources={len(sources)})")
-        return TestQueryResponse(query=query, response=response_text, sources=sources)
+        return TestQueryResponse(
+            query=query, response=response_text, sources=sources, error=False
+        )
 
     except HTTPException:
         raise