diff --git a/test/unittest/CMakeLists.txt b/test/unittest/CMakeLists.txt
index 89adf72..692e686 100644
--- a/test/unittest/CMakeLists.txt
+++ b/test/unittest/CMakeLists.txt
@@ -18,13 +18,14 @@ else()
     add_compile_options(/W4 /permissive- /sdl)
 endif()
 
+enable_testing()
+
 add_subdirectory(googletest)
 include_directories(${gtest_SOURCE_DIR}/include ${gtest_SOURCE_DIR})
-include_directories(.)
-enable_testing()
 include(GoogleTest)
+
+include_directories(.)
 include_directories(../../)
-enable_testing()
 
 add_executable(BasicTest basic_test.cpp)
 target_link_libraries(BasicTest gtest gtest_main)
diff --git a/test/unittest/googletest b/test/unittest/googletest
index 5f8fcf4..703bd9c 160000
--- a/test/unittest/googletest
+++ b/test/unittest/googletest
@@ -1 +1 @@
-Subproject commit 5f8fcf4aa8ce30dfe76f9c9db97d2da4ce3737ef
+Subproject commit 703bd9caab50b139428cea1aaff9974ebee5742e
diff --git a/test/unittest/type_traits_test.cpp b/test/unittest/type_traits_test.cpp
index aa4ca67..164cc79 100644
--- a/test/unittest/type_traits_test.cpp
+++ b/test/unittest/type_traits_test.cpp
@@ -21,6 +21,7 @@ static_assert(internal::is_signed_int<int>::value, "");
 static_assert(internal::is_signed_int<long>::value, "");
 static_assert(internal::is_signed_int<long long>::value, "");
 
+static_assert(!internal::is_signed_int<bool>::value, "");
 static_assert(!internal::is_signed_int<unsigned char>::value, "");
 static_assert(!internal::is_signed_int<unsigned short>::value, "");
 static_assert(!internal::is_signed_int<unsigned int>::value, "");
@@ -33,6 +34,7 @@ static_assert(!internal::is_unsigned_int<int>::value, "");
 static_assert(!internal::is_unsigned_int<long>::value, "");
 static_assert(!internal::is_unsigned_int<long long>::value, "");
 
+static_assert(internal::is_unsigned_int<bool>::value, "");
 static_assert(internal::is_unsigned_int<unsigned char>::value, "");
 static_assert(internal::is_unsigned_int<unsigned short>::value, "");
 static_assert(internal::is_unsigned_int<unsigned int>::value, "");
diff --git a/test/utils/math.hpp b/test/utils/math.hpp
index 47cec4c..ae07545 100644
--- a/test/utils/math.hpp
+++ b/test/utils/math.hpp
@@ -1,5 +1,6 @@
-#include <atcoder/internal_math>
-#include <atcoder/math>
+#include "atcoder/internal_math"
+#include "atcoder/math"
+
 #include <vector>
 
 std::vector<int> factors(int m) {