diff --git a/lib/isc/win32/include/isc/stdatomic.h b/lib/isc/win32/include/isc/stdatomic.h
index 0fccf4600c..eb22a80665 100644
--- a/lib/isc/win32/include/isc/stdatomic.h
+++ b/lib/isc/win32/include/isc/stdatomic.h
@@ -19,6 +19,7 @@
 #include <windows.h>
 
 #pragma warning(disable : 4133)
+#pragma warning(disable : 4090)
 
 #define InterlockedExchangeAdd8	    _InterlockedExchangeAdd8
 #define InterlockedCompareExchange8 _InterlockedCompareExchange8