diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91e9a342..a46cef6a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -106,6 +106,7 @@ if(BUILD_TESTING AND INJA_BUILD_TESTS)
 
   add_executable(inja_benchmark test/benchmark.cpp)
   target_link_libraries(inja_benchmark PRIVATE inja)
+  target_include_directories(inja_benchmark PRIVATE third_party/include)
 endif()
 
 
diff --git a/test/benchmark.cpp b/test/benchmark.cpp
index 92c696f1..a08c435a 100644
--- a/test/benchmark.cpp
+++ b/test/benchmark.cpp
@@ -1,16 +1,16 @@
 // Copyright (c) 2020 Pantor. All rights reserved.
 
-#include "hayai/hayai.hpp"
+#include <hayai/hayai.hpp>
 #include <inja/inja.hpp>
 
 inja::Environment env;
 
 const std::string test_file_directory {"../test/data/benchmark/"};
 
-auto small_data = env.load_json(test_file_directory + "small_data.json");
-auto large_data = env.load_json(test_file_directory + "large_data.json");
-std::string medium_template = env.load_file(test_file_directory + "medium_template.txt");
-std::string large_template = env.load_file(test_file_directory + "large_template.txt");
+const auto small_data = env.load_json(test_file_directory + "small_data.json");
+const auto large_data = env.load_json(test_file_directory + "large_data.json");
+const std::string medium_template = env.load_file(test_file_directory + "medium_template.txt");
+const std::string large_template = env.load_file(test_file_directory + "large_template.txt");
 
 BENCHMARK(SmallDataMediumTemplate, render, 5, 30) {
   env.render(medium_template, small_data);