diff --git a/Formula/tcpflow.rb b/Formula/tcpflow.rb
index 66898bfc6ff..980a0211008 100644
--- a/Formula/tcpflow.rb
+++ b/Formula/tcpflow.rb
@@ -2,7 +2,7 @@ require 'formula'
 
 class Tcpflow < Formula
   homepage 'https://github.com/simsong/tcpflow'
-  url 'http://www.digitalcorpora.org/downloads/tcpflow/tcpflow-1.4.4.tar.gz'
+  url 'http://digitalcorpora.org/downloads/tcpflow/tcpflow-1.4.4.tar.gz'
   sha1 'e4bc5ad08a81a39943bd1c799edefcdee09de784'
 
   head do