diff --git a/pkgs/tools/archivers/zpaq/default.nix b/pkgs/tools/archivers/zpaq/default.nix
index 3c0464b6523..30b05b2b234 100644
--- a/pkgs/tools/archivers/zpaq/default.nix
+++ b/pkgs/tools/archivers/zpaq/default.nix
@@ -37,5 +37,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3Plus ;
     maintainers = with maintainers; [ raskin nckx ];
     platforms = platforms.linux;
+    inherit version;
   };
 }