diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index c947b93ed6..c554991c0c 100644
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -10176,6 +10176,7 @@ ns.domain.com.rpz-nsdname CNAME .
statistics.
Responses that truncated by rate limits are included in
RateSlipped and RespTruncated.
+