diff --git a/src/libostree/ostree-repo-static-delta-processing.c b/src/libostree/ostree-repo-static-delta-processing.c
index 7517046e..87b5c8c9 100644
--- a/src/libostree/ostree-repo-static-delta-processing.c
+++ b/src/libostree/ostree-repo-static-delta-processing.c
@@ -745,6 +745,7 @@ dispatch_write (OstreeRepo                 *repo,
                 return FALSE;
 
               content_size -= bytes_read;
+              content_offset += bytes_read;
             }
         }
       else