diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8631199211..fff85b14b1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,7 +94,7 @@ if (BENCHMARK_BUILD_32_BITS)
   add_required_cxx_compiler_flag(-m32)
 endif()
 
-if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+if (MSVC)
   # Turn compiler warnings up to 11
   string(REGEX REPLACE "[-/]W[1-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")