diff --git a/nav2_system_tests/CMakeLists.txt b/nav2_system_tests/CMakeLists.txt
index 0bf0e2d335000187d43fccbb0b77774542f86f08..e34a3650777b19ee96ddb2a8c4e5784f8989f894 100644
--- a/nav2_system_tests/CMakeLists.txt
+++ b/nav2_system_tests/CMakeLists.txt
@@ -41,7 +41,7 @@ if(BUILD_TESTING)
   find_package(ament_cmake_pytest REQUIRED)
 
   # add_subdirectory(src/planning)
-  # add_subdirectory(src/localization)
+  add_subdirectory(src/localization)
   add_subdirectory(src/system)
   add_subdirectory(src/updown)