diff --git a/test/bellman_ford_test.cc b/test/bellman_ford_test.cc
--- a/test/bellman_ford_test.cc
+++ b/test/bellman_ford_test.cc
@@ -65,7 +65,7 @@
   Node s, t, n;
   Arc e;
   Value l;
-  int k;
+  int k=3;
   bool b;
   BF::DistMap d(gr);
   BF::PredMap p(gr);