diff --git "a/problems/0684.\345\206\227\344\275\231\350\277\236\346\216\245.md" "b/problems/0684.\345\206\227\344\275\231\350\277\236\346\216\245.md"
index 2f939d0827..b447cc6bab 100755
--- "a/problems/0684.\345\206\227\344\275\231\350\277\236\346\216\245.md"
+++ "b/problems/0684.\345\206\227\344\275\231\350\277\236\346\216\245.md"
@@ -266,7 +266,7 @@ class Solution:
                 p[i] = find(p[i])
             return p[i]
         for u, v in edges:
-            if p[find(u)] == find(v):
+            if find(u) == find(v):
                 return [u, v]
             p[find(u)] = find(v)
 ```