diff --git a/scripts/ci/pr_auto_scan.py b/scripts/ci/pr_auto_scan.py
index 9efcbe024..cfe6db8ef 100644
--- a/scripts/ci/pr_auto_scan.py
+++ b/scripts/ci/pr_auto_scan.py
@@ -301,7 +301,7 @@ def main():
         pr_num = pr["number"]
         pr_title = pr["title"]
         head_sha = pr["head"]["sha"]
-        base_ref = pr.get("base", {}).get("re", "")
+        base_ref = pr.get("base", {}).get("ref", "")
 
         # 跳过draft
         if pr.get("draft"):