diff --git a/hw/vfio-user/proxy.h b/hw/vfio-user/proxy.h
index b09fd886f1..7b97460cc5 100644
--- a/hw/vfio-user/proxy.h
+++ b/hw/vfio-user/proxy.h
@@ -91,10 +91,10 @@ typedef struct VFIOUserProxy {
 } VFIOUserProxy;
 
 /* VFIOProxy flags */
-#define VFIO_PROXY_CLIENT        0x1
-#define VFIO_PROXY_FORCE_QUEUED  0x4
-#define VFIO_PROXY_NO_POST       0x8
-#define VFIO_PROXY_USE_MULTI     0x10
+#define VFIO_PROXY_CLIENT        BIT(0)
+#define VFIO_PROXY_FORCE_QUEUED  BIT(1)
+#define VFIO_PROXY_NO_POST       BIT(2)
+#define VFIO_PROXY_USE_MULTI     BIT(3)
 
 /* coalescing high and low water marks for VFIOProxy num_outgoing */
 #define VFIO_USER_OUT_HIGH       1024