diff --git a/sonoff/user_config.h b/sonoff/user_config.h
index 46a98c4e3..d2f89d9b9 100644
--- a/sonoff/user_config.h
+++ b/sonoff/user_config.h
@@ -323,7 +323,7 @@
       #define MTX_ADDRESS7     0x00              // [DisplayAddress7] I2C address of seventh 8x8 matrix module
       #define MTX_ADDRESS8     0x00              // [DisplayAddress8] I2C address of eigth 8x8 matrix module
   #define USE_DS3231                          // Enable use DS3231 external RTC , usefall when you don't have avaliable WIFI. see docs in the source file (+1k2 code)
-//  #define USE_RTC_ADDR                      //you can change the addrsss of the DS3231 RTC, default is 0x68, not mandatory fieled
+//  #define USE_RTC_ADDR  0x68                  //you can change the addrsss of the DS3231 RTC, default is 0x68, not mandatory fieled
 
 #endif  // USE_I2C