diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5d22e56125..07a97e20cf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -266,6 +266,12 @@ add_definitions("-DARANGODB_BITS=${BITS}")
 ## COMPILER FEATURES
 ################################################################################
 
+if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  set(CMAKE_COMPILER_IS_CLANG 1)
+elseif (CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
+  set(CMAKE_COMPILER_IS_CLANG 1)
+endif ()
+
 if (WINDOWS)
   set(BASE_FLAGS     "/D WIN32 /D _WINDOWS /W3 /MP"      CACHE STRING "base flags")
   set(BASE_C_FLAGS   ""                         	 CACHE STRING "base C flags")