diff --git a/update_attempter.h b/update_attempter.h
index 6c25eb2..82b81ce 100644
--- a/update_attempter.h
+++ b/update_attempter.h
@@ -85,6 +85,7 @@
                       const std::string& target_channel,
                       const std::string& target_version_prefix,
                       bool rollback_allowed,
+                      bool rollback_data_save_requested,
                       int rollback_allowed_milestones,
                       bool obey_proxies,
                       bool interactive);
@@ -341,6 +342,7 @@
                              const std::string& target_channel,
                              const std::string& target_version_prefix,
                              bool rollback_allowed,
+                             bool rollback_data_save_requested,
                              int rollback_allowed_milestones,
                              bool obey_proxies,
                              bool interactive);