diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 6df6b7329d..7b27dad6c4 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -874,7 +874,7 @@ static uint64_t virtio_net_guest_offloads_by_features(uint32_t features)
     return guest_offloads_mask & features;
 }
 
-static inline uint64_t virtio_net_supported_guest_offloads(VirtIONet *n)
+static inline uint64_t virtio_net_supported_guest_offloads(const VirtIONet *n)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(n);
     return virtio_net_guest_offloads_by_features(vdev->guest_features);