diff --git a/pkgs/tools/misc/bc/default.nix b/pkgs/tools/misc/bc/default.nix
index 96c2d00ffa82..bb5ed84e7d72 100644
--- a/pkgs/tools/misc/bc/default.nix
+++ b/pkgs/tools/misc/bc/default.nix
@@ -3,9 +3,10 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "bc-1.07.1";
+  pname = "bc";
+  version = "1.07.1";
   src = fetchurl {
-    url = "mirror://gnu/bc/${name}.tar.gz";
+    url = "mirror://gnu/bc/${pname}-${version}.tar.gz";
     sha256 = "62adfca89b0a1c0164c2cdca59ca210c1d44c3ffc46daf9931cf4942664cb02a";
   };
 
@@ -30,10 +31,10 @@ stdenv.mkDerivation rec {
   # masss-rebuild.
   strictDeps = true;
 
-  meta = {
+  meta = with lib; {
     description = "GNU software calculator";
     homepage = "https://www.gnu.org/software/bc/";
-    license = lib.licenses.gpl3;
-    platforms = lib.platforms.all;
+    license = licenses.gpl3Plus;
+    platforms = platforms.all;
   };
 }