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-rw-r--r--pkgs/tools/graphics/mscgen/default.nix7
1 files changed, 2 insertions, 5 deletions
diff --git a/pkgs/tools/graphics/mscgen/default.nix b/pkgs/tools/graphics/mscgen/default.nix
index 6cd8777f525..6749a193c00 100644
--- a/pkgs/tools/graphics/mscgen/default.nix
+++ b/pkgs/tools/graphics/mscgen/default.nix
@@ -11,12 +11,9 @@
 , zlib
 }:
 
-let
-  version = "0.20";
-in
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   pname = "mscgen";
-  inherit version;
+  version = "0.20";
 
   src = fetchurl {
     url = "http://www.mcternan.me.uk/mscgen/software/mscgen-src-${version}.tar.gz";