diff --git a/deepdoc/parser/paddleocr_parser.py b/deepdoc/parser/paddleocr_parser.py
index 85db63b862..28546e1c0f 100644
--- a/deepdoc/parser/paddleocr_parser.py
+++ b/deepdoc/parser/paddleocr_parser.py
@@ -199,6 +199,7 @@ class PaddleOCRParser(RAGFlowPdfParser):
         """Initialize PaddleOCR parser."""
         super().__init__()
 
+        self.outlines = []
         self.api_url = api_url.rstrip("/") if api_url else os.getenv("PADDLEOCR_API_URL", "")
         self.access_token = access_token or os.getenv("PADDLEOCR_ACCESS_TOKEN")
         self.algorithm = algorithm