diff --git a/common/hardware_interface.h b/common/hardware_interface.h
index 4e820f1..1b146d1 100644
--- a/common/hardware_interface.h
+++ b/common/hardware_interface.h
@@ -100,9 +100,8 @@
   virtual int GetPowerwashCount() const = 0;
 
   // Signals that a powerwash (stateful partition wipe) should be performed
-  // after reboot. If |save_rollback_data| is true additional state is
-  // preserved during shutdown that can be restored after the powerwash.
-  virtual bool SchedulePowerwash(bool save_rollback_data) = 0;
+  // after reboot.
+  virtual bool SchedulePowerwash() = 0;
 
   // Cancel the powerwash operation scheduled to be performed on next boot.
   virtual bool CancelPowerwash() = 0;