diff --git a/src/backup/chunker.rs b/src/backup/chunker.rs
index 7e19d9e7..8693b455 100644
--- a/src/backup/chunker.rs
+++ b/src/backup/chunker.rs
@@ -228,6 +228,7 @@ impl Chunker {
             let byte = self.window[i];
             h = h.rotate_left(1) ^ BUZHASH_TABLE[byte as usize];
         }
+        self.h = h;
     }
 }