diff --git a/jikimo_purchase_request/models/purchase_request.py b/jikimo_purchase_request/models/purchase_request.py
index 9ed11f13..3db8a2d1 100644
--- a/jikimo_purchase_request/models/purchase_request.py
+++ b/jikimo_purchase_request/models/purchase_request.py
@@ -92,7 +92,7 @@ class PurchaseRequestLine(models.Model):
                 continue
             if record.product_id.categ_id.name == '坯料':
                 product_name = ''
-                match = re.search(r'(S\d{5}-\d)', record.product_id.name)
+                match = re.search(r'(S\d{5}-\d*)', record.product_id.name)
                 # 如果匹配成功，提取结果
                 if match:
                     product_name = match.group(0)