diff --git a/flash.c b/flash.c
--- a/flash.c
+++ b/flash.c
@@ -40,6 +40,7 @@ void flash_load_defaults(therm_settings_
 	torestore->val.ignore_error = DEFAULT_IGNORE_ERROR;
 	torestore->val.setpoint_brew = DEFAULT_SETPOINT_BREW;
 	torestore->val.setpoint_steam = DEFAULT_SETPOINT_STEAM;
+    torestore->val.hysteresis = DEFAULT_HYSTERESIS;
 }
 
 static void __flash_write(therm_settings_t* tosave)