doc/concepts.tex: Fix misformatting.

diff --git a/doc/concepts.tex b/doc/concepts.tex
index 8e774fe..c4bcf61 100644 (file)
--- a/doc/concepts.tex
+++ b/doc/concepts.tex
@@ -1278,7 +1278,7 @@ functions.
 Metaobject classes are chosen in a fairly standard way.
 \begin{itemize}
 \item All metaobject definitions support a symbol-valued property, usually
-  named @|@<thing>_class| (e.g., @|slot_class|, @|method_class|), which sets
+  named @|@<thing>{}_class| (e.g., @|slot_class|, @|method_class|), which sets
   the metaobject class explicitly.  (The class for a class metaobject is
   taken from the @|lisp_class| property, because @|class_class| seems less
   meaningful.)