diff --git a/block/parallels.c b/block/parallels.c
index 66c86d8..2b5f2b5 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -531,6 +531,7 @@
     res->corruptions++;
     if (fix & BDRV_FIX_ERRORS) {
         s->header->data_off = cpu_to_le32(data_off);
+        s->data_start = data_off;
         res->corruptions_fixed++;
     }