diff --git a/pkgs/ghidra-xenia-v2/build.nix b/pkgs/ghidra-xenia-v2/build.nix
index 71a54e8..8d24893 100644
--- a/pkgs/ghidra-xenia-v2/build.nix
+++ b/pkgs/ghidra-xenia-v2/build.nix
@@ -148,6 +148,12 @@ stdenv.mkDerivation (finalAttrs: {
     mv "$lib/lib/ghidra"/*/* "$lib/lib/ghidra"
     rmdir "''${f[@]}"
     mv "$lib/lib/ghidra/docs" "$doc/share/doc/ghidra"
+
+    # the builtin help viewer needs the following to stay in-tree
+    mkdir "$lib/lib/ghidra/docs"
+    cp "$doc/share/doc/ghidra/WhatsNew.html" "$lib/lib/ghidra/docs"
+    cp "$doc/share/doc/ghidra/README_PDB.html" "$lib/lib/ghidra/docs"
+
     for path in server/svrREADME.html support/GhidraGo/ghidraGoREADME.html support/analyzeHeadlessREADME.html support/buildGhidraJarREADME.txt; do
       out_path="$(basename "$path")"
       mv "$lib/lib/ghidra/$path" "$doc/share/doc/ghidra/$out_path"