diff --git a/sonoff/sonoff.h b/sonoff/sonoff.h
index 6f61b20ff..7e5d1c029 100644
--- a/sonoff/sonoff.h
+++ b/sonoff/sonoff.h
@@ -49,8 +49,6 @@ typedef unsigned long power_t;              // Power (Relay) type
 #define MAX_DOMOTICZ_IDX       4            // Max number of Domoticz device, key and switch indices
 #define MAX_DOMOTICZ_SNS_IDX   12           // Max number of Domoticz sensors indices
 #define MAX_RULE_SIZE          256          // Max number of characters in rules
-#define MAX_KNX_GA             10           // Max number of KNX Group Addresses to read that can be set
-#define MAX_KNX_CB             10           // Max number of KNX Group Addresses to write that can be set
 
 #define MODULE                 SONOFF_BASIC // [Module] Select default model