diff --git a/build/shared/lib/keywords.txt b/build/shared/lib/keywords.txt
index ac7de85f8..422b39cda 100644
--- a/build/shared/lib/keywords.txt
+++ b/build/shared/lib/keywords.txt
@@ -182,6 +182,8 @@ parseInt	KEYWORD2
 parseFloat	KEYWORD2
 readBytes	KEYWORD2
 readBytesUntil	KEYWORD2
+readString	KEYWORD2
+readStringUntil	KEYWORD2
 
 # USB-related keywords