diff --git a/CMakeLists.txt b/CMakeLists.txt
index e336f2a09..930190b9f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -273,8 +273,8 @@ endif()
 
 if(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
     message("Adding MSVC options")
-    target_compile_options(c3c PRIVATE /wd4068 /wd4090 /WX)
-    target_compile_options(c3c_wrappers PUBLIC /wd4624 /wd4267 /wd4244 /WX)
+    target_compile_options(c3c PRIVATE /wd4068 /wd4090 /WX /Wv:18)
+    target_compile_options(c3c_wrappers PUBLIC /wd4624 /wd4267 /wd4244 /WX /Wv:18)
     if(CMAKE_BUILD_TYPE STREQUAL "Debug")
         target_compile_options(c3c PUBLIC /MTd)
         target_compile_options(c3c_wrappers PUBLIC /MTd)