diff --git a/pkgs/development/libraries/libxslt/default.nix b/pkgs/development/libraries/libxslt/default.nix
index dbca7f7fc2b7..95ecbbc44dee 100644
--- a/pkgs/development/libraries/libxslt/default.nix
+++ b/pkgs/development/libraries/libxslt/default.nix
@@ -60,6 +60,8 @@ stdenv.mkDerivation rec {
     "--without-crypto"
   ];
 
+  enableParallelBuilding = true;
+
   postFixup = ''
     moveToOutput bin/xslt-config "$dev"
     moveToOutput lib/xsltConf.sh "$dev"