1 files changed, 11 insertions, 3 deletions
diff --git a/pkgs/data/sgml+xml/schemas/xml-dtd/docbook-ebnf/default.nix b/pkgs/data/sgml+xml/schemas/xml-dtd/docbook-ebnf/default.nix
index e9ff03f78435..bc51ceeca431 100644
--- a/pkgs/data/sgml+xml/schemas/xml-dtd/docbook-ebnf/default.nix
+++ b/pkgs/data/sgml+xml/schemas/xml-dtd/docbook-ebnf/default.nix
@@ -1,16 +1,24 @@
 {stdenv, fetchurl, unzip}:
 
-assert unzip != null;
-
 stdenv.mkDerivation {
   name = "docbook-xml-ebnf-1.2b1";
-  builder = ./builder.sh;
+
   dtd = fetchurl {
     url = http://www.docbook.org/xml/ebnf/1.2b1/dbebnf.dtd;
     sha256 = "0min5dsc53my13b94g2yd65q1nkjcf4x1dak00bsc4ckf86mrx95";
   };
   catalog = ./docbook-ebnf.cat;
 
+  unpackPhase = ''
+    mkdir -p $out/xml/dtd/docbook-ebnf
+    cd $out/xml/dtd/docbook-ebnf
+  '';
+
+  installPhase = ''
+    cp -p $dtd dbebnf.dtd
+    cp -p $catalog $(stripHash $catalog)
+  '';
+
   meta = {
     platforms = stdenv.lib.platforms.unix;
   };