diff --git a/doc/ref/misc-modules.texi b/doc/ref/misc-modules.texi
index c22aa4d9c..963aa8980 100644
--- a/doc/ref/misc-modules.texi
+++ b/doc/ref/misc-modules.texi
@@ -760,7 +760,7 @@ Case conversion.  Between @nicode{~(} and @nicode{~)} the case of all
 output is changed.  The modifiers on @nicode{~(} control the
 conversion.
 
-@itemize @w
+@itemize @w{}
 @item
 no modifiers --- lower case.
 @c