diff --git a/doc/arm/Bv9ARM.ch06.html b/doc/arm/Bv9ARM.ch06.html
index 0fcc07b2ab..6685150e25 100644
--- a/doc/arm/Bv9ARM.ch06.html
+++ b/doc/arm/Bv9ARM.ch06.html
@@ -6403,7 +6403,7 @@ ns.domain.com.rpz-nsdname   CNAME   .
             contents of DNS responses are likely to be attacks on the
             DNS server itself.
             They usually should be discarded before the DNS server
-            spends resources make TCP connections or parsing DNS requesets,
+            spends resources making TCP connections or parsing DNS requests,
             but that rate limiting must be done before the
             DNS server sees the requests.
           </p>