diff --git a/readme.md b/readme.md
index cf6ed15..94be844 100644
--- a/readme.md
+++ b/readme.md
@@ -160,10 +160,17 @@ On Windows, `build.sh` expects [cybozulib_ext](https://github.com/herumi/cybozul
 ## options
 
 ```
-cmake .. USE_GMP=OFF ; without GMP
+cmake .. MCL_USE_GMP=OFF ; without GMP
 ```
 see `cmake .. -LA`.
 
+## tests
+make test binaries in `./bin`.
+```
+cmake .. -DBUILD_TESTING=ON
+make -j4
+```
+
 # How to build for wasm(WebAssembly)
 mcl supports emcc (Emscripten) and `test/bn_test.cpp` runs on browers such as Firefox, Chrome and Edge.
 
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 98d911c..9a4f635 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,5 +1,5 @@
 # Tests
-set(MCL_TEST_BASE fp_test ec_test fp_util_test window_method_test elgamal_test
+set(MCL_TEST_BASE fp_test ec_test fp_util_test window_method_test elgamal_test bls12_test
 	fp_tower_test gmp_test bn_test glv_test)
 foreach(base IN ITEMS ${MCL_TEST_BASE})
 	add_executable(${base} ${base}.cpp)