diff --git a/pkgs/tools/package-management/nix/custom.nix b/pkgs/tools/package-management/nix/custom.nix
index dea1c93b01a9..f87044d70456 100644
--- a/pkgs/tools/package-management/nix/custom.nix
+++ b/pkgs/tools/package-management/nix/custom.nix
@@ -7,6 +7,7 @@
 , bison ? null
 , flex ? null
 , w3m ? null
+, libxml2 ? null
 , docbook5_xsl ? null, libxslt ? null
 , docbook5 ? null, docbook_xml_dtd_43 ? null 
 , configureFlags ? []
@@ -30,6 +31,7 @@ stdenv.mkDerivation {
   	++ (if docbook5 != null then [docbook5] else [])
   	++ (if docbook_xml_dtd_43 != null then [docbook_xml_dtd_43] else [])
   	++ (if w3m != null then [w3m] else [])
+  	++ (if libxml2 != null then [libxml2] else [])
   ;
 
   preConfigure = 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e48471479cbc..59d135562321 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8225,7 +8225,7 @@ let
       flex = flex2533;
       aterm = aterm242fixes;
       db4 = db45;
-      inherit docbook5_xsl libxslt docbook5 docbook_xml_dtd_43 w3m;
+      inherit docbook5_xsl libxslt docbook5 docbook_xml_dtd_43 w3m libxml2;
     };
 
   disnix = import ../tools/package-management/disnix {