diff --git a/resolver/dns/dns_resolver.go b/resolver/dns/dns_resolver.go
index 02678971..5992bfbd 100644
--- a/resolver/dns/dns_resolver.go
+++ b/resolver/dns/dns_resolver.go
@@ -16,6 +16,8 @@
  *
  */
 
+// Package dns implements a dns resolver to be installed as the default resolver
+// in grpc.
 package dns
 
 import (