diff --git a/keywords.txt b/keywords.txt
index 9aabb1c0..0970a21a 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -117,6 +117,8 @@ clearGdo2Action	KEYWORD2
 setTCXO	KEYWORD2
 setDio2AsRfSwitch	KEYWORD2
 getTimeOnAir	KEYWORD2
+implicitHeader
+explicitHeader
 setSyncBits	KEYWORD2
 setWhitening	KEYWORD2
 startReceiveDutyCycle	KEYWORD2