diff --git a/problems/0112.路径总和.md b/problems/0112.路径总和.md
index 54f79d1d..d798ca90 100644
--- a/problems/0112.路径总和.md
+++ b/problems/0112.路径总和.md
@@ -117,7 +117,7 @@ if (cur->left) { // 左
 }
 if (cur->right) { // 右
     count -= cur->right->val;
-    if (traversal(cur->right, count - cur->right->val)) return true;
+    if (traversal(cur->right, count)) return true;
     count += cur->right->val;
 }
 return false;