diff --git a/ortools/graph/one_tree_lower_bound_test.cc b/ortools/graph/one_tree_lower_bound_test.cc
index 6f988a92fe..977b0c5236 100644
--- a/ortools/graph/one_tree_lower_bound_test.cc
+++ b/ortools/graph/one_tree_lower_bound_test.cc
@@ -23,7 +23,7 @@
 #include "gtest/gtest.h"
 #include "ortools/base/path.h"
 #include "ortools/base/types.h"
-#include "ortools/routing/tsplib_parser.h"
+#include "ortools/routing/parsers/tsplib_parser.h"
 
 namespace operations_research {
 namespace {