diff --git a/librabbitmq/amqp_private.h b/librabbitmq/amqp_private.h
index e73776c7d..b5266fa0c 100644
--- a/librabbitmq/amqp_private.h
+++ b/librabbitmq/amqp_private.h
@@ -71,7 +71,7 @@
 #define AMQP_UNUSED __attribute__((__unused__))
 #elif defined(_MSC_VER)
 #define AMQP_NORETURN __declspec(noreturn)
-#define AMQP_UNUSED
+#define AMQP_UNUSED __pragma(warning(suppress : 4100))
 #else
 #define AMQP_NORETURN
 #define AMQP_UNUSED