diff --git a/weave b/weave
index 52106fd0..36502741 100755
--- a/weave
+++ b/weave
@@ -43,7 +43,7 @@ weave version
 weave launch        <same arguments as 'weave launch-router'>
 weave launch-router [--password <password>] [--nickname <nickname>]
                       [--ipalloc-range <cidr> [--ipalloc-default-subnet <cidr>]]
-                      [--no-discovery] [--init-peer-count <count>]
+                      [--no-discovery] [--init-peer-count <count>] [--no-dns]
                       [--trusted-subnets <cidr>,...] <peer> ...
 weave launch-proxy  [-H <endpoint>] [--without-dns]
                       [--no-default-ipalloc] [--no-rewrite-hosts]