diff --git a/lisp/textmodes/tex-mode.el b/lisp/textmodes/tex-mode.el
index e3d5759579a..a905d148009 100644
--- a/lisp/textmodes/tex-mode.el
+++ b/lisp/textmodes/tex-mode.el
@@ -593,7 +593,7 @@ An alternative value is \" . \", if you use a font with a narrow period."
 	    ;; Miscellany.
 	    (slash "\\\\")
 	    (opt " *\\(\\[[^]]*\\] *\\)*")
-	    (args "\\(\\(?:[^{}&\\]+\\|\\\\.\\|{[^}]*}\\)+\\)")
+	    (args "\\(\\(?:[^${}&\\]+\\|\\\\.\\|{[^}]*}\\)+\\)")
 	    (arg "{\\(\\(?:[^{}\\]+\\|\\\\.\\|{[^}]*}\\)+\\)"))
        (list
 	;;