diff --git a/block/src/qcow_sync.rs b/block/src/qcow_sync.rs
index 4c2611a5a..e9b64726e 100644
--- a/block/src/qcow_sync.rs
+++ b/block/src/qcow_sync.rs
@@ -326,6 +326,8 @@ impl disk_file::Resizable for QcowDiskSync {
     }
 }
 
+impl disk_file::DiskFile for QcowDiskSync {}
+
 pub struct QcowSync {
     metadata: Arc<QcowMetadata>,
     data_file: QcowRawFile,