diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a883b2b..9fd9364f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,9 @@ cmake_minimum_required(VERSION 3.9)
 
 project(applewin)
 
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 add_compile_options(-Werror=return-type)
 
 MESSAGE("CMAKE_BUILD_TYPE:                ${CMAKE_BUILD_TYPE}")