diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ed212db..77b765c3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -215,7 +215,7 @@ if(MSVC)
     if(HAVE_PERMISSIVE_SWITCH)
         set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:/permissive->)
     endif()
-    set(C_FLAGS ${C_FLAGS} /W4 /w14640 /wd4065 /wd4268 /wd4324 /wd5030)
+    set(C_FLAGS ${C_FLAGS} /W4 /w14640 /wd4065 /wd4127 /wd4268 /wd4324 /wd5030)
     # Remove /W3, which is added by default, since we set /W4. Some build
     # generators with MSVC complain about both /W3 and /W4 being specified.
     foreach(flag_var  CMAKE_C_FLAGS CMAKE_CXX_FLAGS)