diff --git a/block/src/qcow_async.rs b/block/src/qcow_async.rs
index f9cd0572e..62b2872b2 100644
--- a/block/src/qcow_async.rs
+++ b/block/src/qcow_async.rs
@@ -91,3 +91,13 @@ impl disk_file::DiskFd for QcowDiskAsync {
 }
 
 impl disk_file::Geometry for QcowDiskAsync {}
+
+impl disk_file::SparseCapable for QcowDiskAsync {
+    fn supports_sparse_operations(&self) -> bool {
+        true
+    }
+
+    fn supports_zero_flag(&self) -> bool {
+        true
+    }
+}