diff --git a/pkgs/tools/networking/ppp/default.nix b/pkgs/tools/networking/ppp/default.nix
index 9034c09acc8b..2ca22fb1da7c 100644
--- a/pkgs/tools/networking/ppp/default.nix
+++ b/pkgs/tools/networking/ppp/default.nix
@@ -1,7 +1,8 @@
 { stdenv, fetchurl, substituteAll, libpcap }:
 
 stdenv.mkDerivation rec {
-  name = "ppp-2.4.5";
+  version = "2.4.5";
+  name = "ppp-${version}";
 
   src = fetchurl {
     url = "${meta.homepage}ftp/ppp/${name}.tar.gz";