diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index a52c2aed0e..8f4351420b 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -1238,10 +1238,9 @@ static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
         }
     }
 
-    g->config_size = sizeof(struct virtio_gpu_config);
     g->virtio_config.num_scanouts = cpu_to_le32(g->conf.max_outputs);
     virtio_init(VIRTIO_DEVICE(g), "virtio-gpu", VIRTIO_ID_GPU,
-                g->config_size);
+                sizeof(struct virtio_gpu_config));
 
     g->req_state[0].width = g->conf.xres;
     g->req_state[0].height = g->conf.yres;
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index c7cb821ae3..a1cecd1df8 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -96,8 +96,6 @@ typedef struct VirtIOGPU {
 
     int enable;
 
-    int config_size;
-
     QTAILQ_HEAD(, virtio_gpu_simple_resource) reslist;
     QTAILQ_HEAD(, virtio_gpu_ctrl_command) cmdq;
     QTAILQ_HEAD(, virtio_gpu_ctrl_command) fenceq;