diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0d5d7ac091..1f7a7f811d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -102,9 +102,6 @@ endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   set(CLANG 1)
-  # Force C++11 as workaround for #2246
-  add_definitions(-D__cplusplus=201103L)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-macro-redefined")
 endif()
 
 if (WIN32)