diff --git a/fontes/articbridges.h b/fontes/articbridges.h
index 46d17b9c6891265716f4dbcca95826df1914c304..472c3ca1da8f914a68bb8289696d8d50fb8a3fd8 100644
--- a/fontes/articbridges.h
+++ b/fontes/articbridges.h
@@ -1,4 +1,4 @@
-int tk = 0; vector<int> tin (N, -1), low (N);
+int tk = 1; vector<int> tin (N, -1), low (N);
 vector<ii> brid; set<int> arti;
 
 void dfs(int u, int p) {