1 files changed, 1 insertions, 1 deletions
diff --git a/lib/resolv.rb b/lib/resolv.rb
index e55bb72654..49e40bdf07 100644
--- a/lib/resolv.rb
+++ b/lib/resolv.rb
@@ -621,7 +621,7 @@ class Resolv
           super()
           @host = host
           @port = port
-          @sock = UDPSocket.new
+          @sock = UDPSocket.new(host.index(':') ? Socket::AF_INET6 : Socket::AF_INET)
           @sock.connect(host, port)
           @sock.fcntl(Fcntl::F_SETFD, 1) if defined? Fcntl::F_SETFD
           @id = -1