diff --git a/app/src/main/assets/txtTocRule.json b/app/src/main/assets/txtTocRule.json
index 4469235a2..58e9e8644 100644
--- a/app/src/main/assets/txtTocRule.json
+++ b/app/src/main/assets/txtTocRule.json
@@ -31,7 +31,7 @@
         "id": -5,
         "enable": false,
         "name": "数字(纯数字标题)",
-        "rule": "(?<=[　\\s])\\d+[ 　\\t]{0,4}$",
+        "rule": "(?<=[　\\s])\\d+\\.?[ 　\\t]{0,4}$",
         "serialNumber": 4
     },
     {