2 files changed, 4 insertions, 3 deletions
diff --git a/pkgs/servers/mail/postfix/default.nix b/pkgs/servers/mail/postfix/default.nix
index a4b0b921adb..39845f12f03 100644
--- a/pkgs/servers/mail/postfix/default.nix
+++ b/pkgs/servers/mail/postfix/default.nix
@@ -24,12 +24,12 @@ let
 
 in stdenv.mkDerivation rec {
 
-  name = "postfix-${version}";
+  pname = "postfix";
 
   version = "3.4.6";
 
   src = fetchurl {
-    url = "ftp://ftp.cs.uu.nl/mirror/postfix/postfix-release/official/${name}.tar.gz";
+    url = "ftp://ftp.cs.uu.nl/mirror/postfix/postfix-release/official/${pname}-${version}.tar.gz";
     sha256 = "09p3vg2xlh6iq45gp6zanbp1728fc31r7zz71r131vh20ssajx6n";
   };
 
diff --git a/pkgs/servers/mail/postfix/pfixtools.nix b/pkgs/servers/mail/postfix/pfixtools.nix
index 8c00bcdbee2..890cd188053 100644
--- a/pkgs/servers/mail/postfix/pfixtools.nix
+++ b/pkgs/servers/mail/postfix/pfixtools.nix
@@ -22,7 +22,8 @@ let
 in
 
 stdenv.mkDerivation {
-  name = "pfixtools-${version}";
+  pname = "pfixtools";
+  inherit version;
 
   src = pfixtoolsSrc;