diff --git a/unit_tests/engine/guidance_assembly.cpp b/unit_tests/engine/guidance_assembly.cpp
index 394698983bb..3d9b1a28dd6 100644
--- a/unit_tests/engine/guidance_assembly.cpp
+++ b/unit_tests/engine/guidance_assembly.cpp
@@ -20,7 +20,7 @@ BOOST_AUTO_TEST_CASE(rfc4648_test_vectors)
 
 BOOST_AUTO_TEST_CASE(trim_short_segments)
 {
-    //using namespace osrm::extractor::guidance;
+    using namespace osrm::extractor::guidance;
     using namespace osrm::engine::guidance;
     using namespace osrm::engine;
     using namespace osrm::util;