diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8174bfc28d..673aab9e6e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,7 +129,7 @@ include(CMakeDependentOption)
 include(CTest)
 
 # Disable Warnings as Errors for MSVC
-if (CXX_CL)
+if (MSVC AND NOT CXX_CLANG)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3 /WX-")
 endif()