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-rw-r--r--pkgs/tools/compression/xdelta/unstable.nix5
1 files changed, 2 insertions, 3 deletions
diff --git a/pkgs/tools/compression/xdelta/unstable.nix b/pkgs/tools/compression/xdelta/unstable.nix
index a19fb4de68a..dd7277c4e8f 100644
--- a/pkgs/tools/compression/xdelta/unstable.nix
+++ b/pkgs/tools/compression/xdelta/unstable.nix
@@ -5,12 +5,12 @@
 assert lzmaSupport -> xz != null;
 
 let
-  version = "3.1.0";
   mkWith = flag: name: if flag
     then "--with-${name}"
     else "--without-${name}";
-in stdenv.mkDerivation {
+in stdenv.mkDerivation rec {
   name = "xdelta-${version}";
+  version = "3.1.0";
 
   src = fetchFromGitHub {
     sha256 = "09mmsalc7dwlvgrda56s2k927rpl3a5dzfa88aslkqcjnr790wjy";
@@ -52,7 +52,6 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    inherit version;
     description = "Binary differential compression in VCDIFF (RFC 3284) format";
     longDescription = ''
       xdelta is a command line program for delta encoding, which generates two