diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 17ee0199..00f66ae8 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -105,9 +105,13 @@ find_package(Boost COMPONENTS unit_test_framework REQUIRED)
 
 set(PREVIOUSLY_REQUIRED_INCLUDES "${CMAKE_REQUIRED_INCLUDES}")
 set(PREVIOUSLY_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
+set(PREVIOUSLY_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
 
 list(APPEND CMAKE_REQUIRED_INCLUDES ${Boost_INCLUDE_DIRS})
 list(APPEND CMAKE_REQUIRED_LIBRARIES ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY})
+if(APPLE)
+    list(APPEND CMAKE_REQUIRED_FLAGS "-std=c++11")
+endif()
 
 message(STATUS "Boost_INCLUDE_DIRS = ${Boost_INCLUDE_DIRS}")
 message(STATUS "Boost_UNIT_TEST_FRAMEWORK_LIBRARY = ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY}")
@@ -138,9 +142,15 @@ BOOST_AUTO_TEST_CASE(proforma) { BOOST_TEST(true); }
 
 set(CMAKE_REQUIRED_INCLUDES "${PREVIOUSLY_REQUIRED_INCLUDES}")
 set(CMAKE_REQUIRED_LIBRARIES "${PREVIOUSLY_REQUIRED_LIBRARIES}")
+set(CMAKE_REQUIRED_FLAGS "${PREVIOUSLY_REQUIRED_FLAGS}")
 
 unset(PREVIOUSLY_REQUIRED_INCLUDES)
 unset(PREVIOUSLY_REQUIRED_LIBRARIES)
+unset(PREVIOUSLY_REQUIRED_FLAGS)
+
+message(STATUS "CMAKE_REQUIRED_INCLUDES  = ${CMAKE_REQUIRED_INCLUDES }")
+message(STATUS "CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
+message(STATUS "CMAKE_REQUIRED_FLAGS     = ${CMAKE_REQUIRED_FLAGS    }")
 
 if(TOML11_WITH_BOOST_TEST_DYNAMIC)
     add_definitions(-DUNITTEST_FRAMEWORK_LIBRARY_EXIST -DBOOST_TEST_DYN_LINK)