diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9097ad1d..2ea6e22c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,6 +10,10 @@ endif ()
 
 project(FORMAT)
 
+include(CheckCXXCompilerFlag)
+check_cxx_compiler_flag(-std=c++11 HAVE_STD_CPP11_FLAG)
+add_definitions(-std=c++11)
+
 add_library(format format.cc)
 if (CMAKE_COMPILER_IS_GNUCXX)
   set_target_properties(format PROPERTIES COMPILE_FLAGS