diff --git a/backend/app/routes/spam_routes.py b/backend/app/routes/spam_routes.py
index 5399739..bcef614 100644
--- a/backend/app/routes/spam_routes.py
+++ b/backend/app/routes/spam_routes.py
@@ -395,9 +395,9 @@ def export_xlsx():
             "文本": item.get("text", ""),
             "判定结果": prediction_text,
             "分类标签": item.get("category_label", ""),
-            "置信度": f"{float(item.get("confidence", 0) or 0) * 100:.2f}%",
-            "垃圾概率": f"{float(item.get("spam_probability", 0) or 0) * 100:.2f}%",
-            "正常概率": f"{float(item.get("ham_probability", 0) or 0) * 100:.2f}%",
+            "置信度": f"{float(item.get('confidence', 0) or 0) * 100:.2f}%",
+            "垃圾概率": f"{float(item.get('spam_probability', 0) or 0) * 100:.2f}%",
+            "正常概率": f"{float(item.get('ham_probability', 0) or 0) * 100:.2f}%",
             "风险关键词": token_str,
         })