diff --git a/man/dnsmasq.8 b/man/dnsmasq.8
index bd8c0b3..ac8d921 100644
--- a/man/dnsmasq.8
+++ b/man/dnsmasq.8
@@ -242,7 +242,7 @@ addresses associated with the interface.
 .B --local-service
 Accept DNS queries only from hosts whose address is on a local subnet,
 ie a subnet for which an interface exists on the server. This option
-only has effect is there are no --interface --except-interface,
+only has effect if there are no --interface --except-interface,
 --listen-address or --auth-server options. It is intended to be set as
 a default on installation, to allow unconfigured installations to be
 useful but also safe from being used for DNS amplification attacks.