diff --git a/keywords.txt b/keywords.txt
index 65ad9e5f2a21b798d29803b614b1849510abd967..7dd0b528cb972466c577299ff1dfc00552720d87 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -37,4 +37,4 @@ MSG_TOPIC_MULTI	LITERAL1
 MAX_NR_TOPICS_CLIENT	LITERAL1
 MAX_NR_TOPICS_BROKER	LITERAL1
 MAX_LEN_TOPICS		LITERAL1
-MAX_LEN_DATA		LITERAL1
+MAX_LEN_PAYLOAD		LITERAL1