diff --git a/block/src/qcow_sync.rs b/block/src/qcow_sync.rs
index a2898a49b..56c19307f 100644
--- a/block/src/qcow_sync.rs
+++ b/block/src/qcow_sync.rs
@@ -296,6 +296,8 @@ impl disk_file::DiskFd for QcowDiskSync {
     }
 }
 
+impl disk_file::Geometry for QcowDiskSync {}
+
 pub struct QcowSync {
     metadata: Arc<QcowMetadata>,
     data_file: QcowRawFile,