diff --git a/pkgs/tools/networking/ntp/default.nix b/pkgs/tools/networking/ntp/default.nix
index 88ec3f380a5..573ebec5869 100644
--- a/pkgs/tools/networking/ntp/default.nix
+++ b/pkgs/tools/networking/ntp/default.nix
@@ -5,7 +5,7 @@ assert stdenv.isLinux -> libcap != null;
 stdenv.mkDerivation {
   name = "ntp-4.2.2p4";
   src = fetchurl {
-    url = http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2.2p4.tar.gz;
+    url = http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.2p4.tar.gz;
     md5 = "916fe57525f8327f340b203f129088fa";
   };
   configureFlags = "