diff --git a/gtests/net/packetdrill/checksum.c b/gtests/net/packetdrill/checksum.c
index 06ced251bc6ac59589a7edfe46c0830b5a1afaac..14ee88e0647d1da47bff2f46d2221b9665c571b5 100644
--- a/gtests/net/packetdrill/checksum.c
+++ b/gtests/net/packetdrill/checksum.c
@@ -19,7 +19,7 @@
 /*
  * Author: ncardwell@google.com (Neal Cardwell)
  *
- * Helpers to calculate IP, TCP, and UDP checksums.
+ * Helpers to calculate IP, SCTP, TCP, UDP and UDPLite checksums.
  */
 
 #include "checksum.h"
diff --git a/gtests/net/packetdrill/checksum.h b/gtests/net/packetdrill/checksum.h
index d4154cd8d7b85f5973a5ae20811171f40cac6baf..a91a2729ef085de2109590f6724052b41181451a 100644
--- a/gtests/net/packetdrill/checksum.h
+++ b/gtests/net/packetdrill/checksum.h
@@ -19,7 +19,7 @@
 /*
  * Author: ncardwell@google.com (Neal Cardwell)
  *
- * Helpers to calculate IP, TCP, and UDP checksums.
+ * Helpers to calculate IP, SCTP, TCP, UDP and UDPLite checksums.
  */
 
 #ifndef __CHECKSUM_H__