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-rw-r--r--graphics/pgf/base/doc/text-en/pgfmanual-en-tikz-trees.tex2
1 files changed, 1 insertions, 1 deletions
diff --git a/graphics/pgf/base/doc/text-en/pgfmanual-en-tikz-trees.tex b/graphics/pgf/base/doc/text-en/pgfmanual-en-tikz-trees.tex
index 91d2030c38..e2c3dc2e34 100644
--- a/graphics/pgf/base/doc/text-en/pgfmanual-en-tikz-trees.tex
+++ b/graphics/pgf/base/doc/text-en/pgfmanual-en-tikz-trees.tex
@@ -141,7 +141,7 @@ child node is specified and, thus, it is just |coordinate|.
As for any normal node, you can give the child node a name, shift it around, or
use options to influence how it is rendered.
%
-\begin{codeexample}[]
+\begin{codeexample}[preamble={\usetikzlibrary{shapes.geometric}}]
\begin{tikzpicture}[sibling distance=15mm]
\node[rectangle,draw] {root}
child {node[circle,draw,yshift=-5mm] (left node) {left}}