diff --git a/dollar.rkt b/dollar.rkt
index 4f769b2dd..52fb12e0e 100644
--- a/dollar.rkt
+++ b/dollar.rkt
@@ -287,14 +287,12 @@ EOTEX
          (list (tex-addition tex-commands)
                'exact-chars)))
 
-;; TODO: handle delayed elements here instead of just flattening.
 (define ($-mathjax strs)
-  (elem #:style math-inline-style-mathjax
-        (map katex-convert-unicode (flatten strs))))
+  (elem #:style math-inline-style-mathjax strs))
 
 (define ($-katex strs)
   (elem #:style math-inline-style-katex
-        (map katex-convert-unicode (flatten strs))))
+                (map katex-convert-unicode (flatten strs))))
 
 (define ($$-mathjax strs)
   (elem #:style math-display-style-mathjax strs))