diff --git a/block/src/fixed_vhd_async.rs b/block/src/fixed_vhd_async.rs
index 3ce44e8db..bba4f07de 100644
--- a/block/src/fixed_vhd_async.rs
+++ b/block/src/fixed_vhd_async.rs
@@ -76,6 +76,8 @@ impl disk_file::DiskFd for FixedVhdDiskAsync {
 
 impl disk_file::Geometry for FixedVhdDiskAsync {}
 
+impl disk_file::SparseCapable for FixedVhdDiskAsync {}
+
 pub struct FixedVhdAsync {
     raw_file_async: RawFileAsync,
     size: u64,