diff --git a/include/shield/on.h b/include/shield/on.h
index 0da5376..bf78c4e 100644
--- a/include/shield/on.h
+++ b/include/shield/on.h
@@ -57,6 +57,7 @@
 #pragma warning(disable : 4265)
 #pragma warning(disable : 4267)
 #pragma warning(disable : 4275)
+#pragma warning(disable : 4297)
 #pragma warning(disable : 4324)
 #pragma warning(disable : 4350)
 #pragma warning(disable : 4355)