1 files changed, 3 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/applications/audio/vmpk/default.nix b/nixpkgs/pkgs/applications/audio/vmpk/default.nix
index dde96764fe6c..2bc40a78af48 100644
--- a/nixpkgs/pkgs/applications/audio/vmpk/default.nix
+++ b/nixpkgs/pkgs/applications/audio/vmpk/default.nix
@@ -5,7 +5,8 @@
 let
   version = "0.5.1";
 in stdenv.mkDerivation rec {
-  name = "vmpk-${version}";
+  pname = "vmpk";
+  inherit version;
 
   meta = with stdenv.lib; {
     description = "Virtual MIDI Piano Keyboard";
@@ -15,7 +16,7 @@ in stdenv.mkDerivation rec {
   };
 
   src = fetchurl {
-    url = "mirror://sourceforge/vmpk/${version}/${name}.tar.bz2";
+    url = "mirror://sourceforge/vmpk/${version}/${pname}-${version}.tar.bz2";
     sha256 = "11fqnxgs9hr9255d93n7lazxzjwn8jpmn23nywdksh0pb1ffvfrc";
   };