diff --git a/Custom-Build-Configuration.md b/Custom-Build-Configuration.md
index 39c4789..41c642e 100644
--- a/Custom-Build-Configuration.md
+++ b/Custom-Build-Configuration.md
@@ -14,11 +14,11 @@ RadioLib supports many different Arduino cores, but sometimes it may be benefici
 #define RADIOLIB_NC                                 (0xFF)
 #define RADIOLIB_DEFAULT_SPI                        SPI
 
-// the following parameters must be defined if the Arduino core does not support SoftwareSerial library
+// the following must be defined if the Arduino core does not support SoftwareSerial library
 #define RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
 #define RADIOLIB_HARDWARE_SERIAL_PORT               Serial1
 
-// the following parameters must be defined if the Arduino core does not support tone function
+// the following must be defined if the Arduino core does not support tone function
 #define RADIOLIB_TONE_UNSUPPORTED
 
 #include <RadioLib.h>