diff --git a/doc/generic/pgf/CHANGELOG.md b/doc/generic/pgf/CHANGELOG.md
index bd8a8ab28..086d6212b 100644
--- a/doc/generic/pgf/CHANGELOG.md
+++ b/doc/generic/pgf/CHANGELOG.md
@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Output bounding box adjustment in pgfsys-dvisvgm.def #1275
 - Fix shadings under LuaMetaTeX
 - Resolve missing `gnuplot` plots in manual #1238
+- Fix missing inclusion of three libraries in one of the examples at https://tikz.dev/gd-trees
 
 ### Changed
 
@@ -40,6 +41,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Yukai Chou (@muzimuzhi)
 - Alexander Grahn
 - Max Chernoff
+- Hanson Char
 
 ## [3.1.10] - 2023-01-13 Henri Menke
 
diff --git a/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/doc.lua b/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/doc.lua
index a44fd4703..f09b3dd3f 100644
--- a/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/doc.lua
+++ b/tex/generic/pgf/graphdrawing/lua/pgf/gd/trees/doc.lua
@@ -293,11 +293,9 @@ example
   };
 ]]
 
---[[
-% TODOsp: codeexamples: the next example needs the library `arrows.meta`
---]]
 example
 [[
+\usetikzlibrary{shapes.misc, arrows.meta, decorations.pathmorphing}
 \tikz \graph [binary tree layout] {
   Knuth -> {
     Beeton -> Kellermann [second] -> Carnes,