diff --git a/sonoff/settings.h b/sonoff/settings.h
index cf9ee775a..3dd8aa621 100644
--- a/sonoff/settings.h
+++ b/sonoff/settings.h
@@ -48,7 +48,7 @@ typedef union {                            // Restricted by MISRA-C Rule 18.4 bu
     uint32_t not_power_linked : 1;         // bit 20 (v5.11.1f)
     uint32_t no_power_on_check : 1;        // bit 21 (v5.11.1i)
     uint32_t mqtt_serial : 1;              // bit 22 (v5.12.0f)
-    uint32_t knx_enabled : 1;              // bit 23 KNX
+    uint32_t spare23 : 1;
     uint32_t spare24 : 1;
     uint32_t spare25 : 1;
     uint32_t spare26 : 1;
@@ -255,16 +255,7 @@ struct SYSCFG {
   Timer         timer[MAX_TIMERS];         // 670
   int           latitude;                  // 6B0
   int           longitude;                 // 6B4
-  
-  uint16_t      knx_physsical_addr;        // 6B8  (address_t is a uint16_t)
-  byte          knx_GA_registered;         // 6BB  Number of Group Address to read
-  byte          knx_CB_registered;         // 6BC  Number of Group Address to write
-  uint16_t      knx_GA_addr[MAX_KNX_GA];   // 6BD  (address_t is a uint16_t) x KNX_max_GA
-  uint16_t      knx_CB_addr[MAX_KNX_CB];   // 6D1  (address_t is a uint16_t) x KNX_max_CB
-  byte          knx_GA_param[MAX_KNX_GA];  // 6E5  Type of Input (relay changed, button pressed, sensor read <-teleperiod)
-  byte          knx_CB_param[MAX_KNX_CB];  // 6EF  Type of Output (set relay, toggle relay, reply sensor value)
-
-                                           // 6F9 - FFF free locations
+                                           // 6B8 - FFF free locations
 } Settings;
 
 struct RTCMEM {