diff --git a/config.h b/config.h
--- a/config.h
+++ b/config.h
@@ -46,6 +46,7 @@
 #define DEFAULT_IGNORE_ERROR 0
 #define DEFAULT_SETPOINT_BREW 70
 #define DEFAULT_SETPOINT_STEAM 70
+#define DEFAULT_HYSTERESIS 1
 
 
 #endif