diff --git a/latex/yssymbols.sty b/latex/yssymbols.sty
index f03ac9e..bfe9d82 100644
--- a/latex/yssymbols.sty
+++ b/latex/yssymbols.sty
@@ -45,8 +45,8 @@
 \def\sem#1#2{{\left\lbr#1\right\rbr}_{#2}}
 \NewNegationCommand\models{\mathrel{\notaccent\models}}
 
-\def\metab#1{\ensuremath{\fbox{$#1$}}}
-\def\metasyn#1{\metab{\tmit{#1}}}
+%\def\metab#1{\ensuremath{\fbox{$#1$}}}
+\let\metasyn\tmit
 
 \newenvironment{specification}{\vskip-\lastskip\ \par\begin{mdframed}[skipbelow=1ex]\begin{description}}{\end{description}\end{mdframed}}