diff --git a/.github/actions/spelling/expect/expect.txt b/.github/actions/spelling/expect/expect.txt
index fd80a86e42d..720fc383b01 100644
--- a/.github/actions/spelling/expect/expect.txt
+++ b/.github/actions/spelling/expect/expect.txt
@@ -38,6 +38,7 @@ ANSISYS
 ANSISYSRC
 ANSISYSSC
 answerback
+ANSWERBACKMESSAGE
 antialiasing
 ANull
 anycpu