--- a/doc/eukleides.texi
+++ b/doc/eukleides.texi
@@ -6,12 +6,12 @@
 
 % ------------------------------------------------------------------------------
 
-\def\LaTeX{L\kern-.34em\raise.49ex\hbox{\sevenrm A}\kern-.18em\TeX}
-\def\mdeg{$^\circ$}
+\def\LaTeX@{L\kern-.34em\raise.49ex\hbox@{\sevenrm A@}\kern-.18em\TeX@}
+\def\mdeg@{$^\circ$@}
 \font\degfont=cmtt8
-\def\deg{\raise.7ex\hbox{\degfont o}}
-\def\exm#1{\noindent{\textit Example:}\quad{\texttt #1}}
-\def\exmp{\noindent{\textit Example:}}
+\def\deg@{\raise.7ex\hbox@{\degfont o@}@}
+\def\exm#1@{\noindent@{\textit Example:@}\quad@{\texttt #1@}@}
+\def\exmp@{\noindent@{\textit Example:@}@}
 
 % ------------------------------------------------------------------------------