diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
index 07f6355ad6..6a83fb63c8 100644
--- a/hw/display/virtio-gpu-virgl.c
+++ b/hw/display/virtio-gpu-virgl.c
@@ -120,7 +120,7 @@ virtio_gpu_virgl_map_resource_blob(VirtIOGPU *g,
     vmr->g = g;
 
     mr = &vmr->mr;
-    memory_region_init_ram_ptr(mr, OBJECT(mr), "blob", size, data);
+    memory_region_init_ram_ptr(mr, OBJECT(mr), NULL, size, data);
     memory_region_add_subregion(&b->hostmem, offset, mr);
     memory_region_set_enabled(mr, true);
 
@@ -186,7 +186,7 @@ virtio_gpu_virgl_unmap_resource_blob(VirtIOGPU *g,
         /* memory region owns self res->mr object and frees it by itself */
         memory_region_set_enabled(mr, false);
         memory_region_del_subregion(&b->hostmem, mr);
-        object_unparent(OBJECT(mr));
+        object_unref(OBJECT(mr));
     }
 
     return 0;