diff --git a/doc/generic/pgf/pgfmanual-en-tikz-coordinates.tex b/doc/generic/pgf/pgfmanual-en-tikz-coordinates.tex
index 0128ec2af..243c1bf73 100644
--- a/doc/generic/pgf/pgfmanual-en-tikz-coordinates.tex
+++ b/doc/generic/pgf/pgfmanual-en-tikz-coordinates.tex
@@ -663,6 +663,7 @@ \subsubsection{Defining New Coordinate Systems}
 \define@key{cylindricalkeys}{angle}{\def\myangle{#1}}
 \define@key{cylindricalkeys}{radius}{\def\myradius{#1}}
 \define@key{cylindricalkeys}{z}{\def\myz{#1}}
+\makeatother
 \tikzdeclarecoordinatesystem{cylindrical}%
 {%
   \setkeys{cylindricalkeys}{#1}%