diff --git a/CMakeLists.txt b/CMakeLists.txt
index e3dca53..286335c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,4 @@
+cmake_minimum_required(VERSION 3.13)  # CMake version check
 if(ESP_PLATFORM)
     set(sourcedirs
         .
@@ -18,6 +19,7 @@ endif()
 
 project(RoboidControl)
 add_subdirectory(VectorAlgebra)
+#add_subdirectory(test)
 
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
@@ -52,6 +54,7 @@ target_link_libraries(
     RoboidControlTest
     gtest_main
     RoboidControl
+    VectorAlgebra
 )
 
 include(GoogleTest)