diff --git a/build/shared/lib/keywords.txt b/build/shared/lib/keywords.txt
index fc190f183..0cb132eb8 100644
--- a/build/shared/lib/keywords.txt
+++ b/build/shared/lib/keywords.txt
@@ -28,6 +28,8 @@ INTERNAL	LITERAL2	AnalogReference	RESERVED_WORD_2
 INTERNAL1V1	LITERAL2	AnalogReference	RESERVED_WORD_2
 INTERNAL2V56	LITERAL2	AnalogReference	RESERVED_WORD_2
 LED_BUILTIN	LITERAL2			RESERVED_WORD_2
+LED_BUILTIN_RX	LITERAL2			RESERVED_WORD_2
+LED_BUILTIN_TX	LITERAL2			RESERVED_WORD_2
 
 auto	LITERAL2		RESERVED_WORD_2
 constexpr	LITERAL2		RESERVED_WORD_2