1 files changed, 3 insertions, 3 deletions
diff --git a/nixpkgs/pkgs/applications/science/math/calc/default.nix b/nixpkgs/pkgs/applications/science/math/calc/default.nix
index 348c1e750867..0d149eca3b63 100644
--- a/nixpkgs/pkgs/applications/science/math/calc/default.nix
+++ b/nixpkgs/pkgs/applications/science/math/calc/default.nix
@@ -2,13 +2,13 @@
 , enableReadline ? true, readline, ncurses }:
 
 stdenv.mkDerivation rec {
-  name = "calc-${version}";
+  pname = "calc";
   version = "2.12.7.2";
 
   src = fetchurl {
     urls = [
-      "https://github.com/lcn2/calc/releases/download/${version}/${name}.tar.bz2"
-      "http://www.isthe.com/chongo/src/calc/${name}.tar.bz2"
+      "https://github.com/lcn2/calc/releases/download/${version}/${pname}-${version}.tar.bz2"
+      "http://www.isthe.com/chongo/src/calc/${pname}-${version}.tar.bz2"
     ];
     sha256 = "147wmbajcxv6wp92j6pizq4plrr1sb7jirifr1477bx33hc49bsp";
   };