diff --git a/site/features.md b/site/features.md
index 95700a4f..11ec05bb 100644
--- a/site/features.md
+++ b/site/features.md
@@ -191,7 +191,7 @@ invocation:
     host2$ weave hide   10.2.1.102/24 10.2.2.102/24
 
 Finally, exposed addresses can be added to weaveDNS by supplying a
-hostname:
+fully-qualified domain name:
 
     host2$ weave expose 10.2.1.102/24 -h exposed.weave.local
 
diff --git a/weave b/weave
index 786c62ac..3776a2ea 100755
--- a/weave
+++ b/weave
@@ -28,7 +28,7 @@ usage() {
     echo "weave start      <cidr> [<cidr> ...] <container_id>"
     echo "weave attach     <cidr> [<cidr> ...] <container_id>"
     echo "weave detach     <cidr> [<cidr> ...] <container_id>"
-    echo "weave expose     <cidr> [<cidr> ...] [-h <hostname>]"
+    echo "weave expose     <cidr> [<cidr> ...] [-h <fqdn>]"
     echo "weave hide       <cidr> [<cidr> ...]"
     echo "weave ps         [<container_id> ...]"
     echo "weave status"