diff --git a/ox-reveal.el b/ox-reveal.el
index eb5a438..62a3fef 100644
--- a/ox-reveal.el
+++ b/ox-reveal.el
@@ -422,7 +422,7 @@ holding contextual information."
              (let ((attrs
                     (org-html--make-attribute-string
                      `(:data-transition ,(org-element-property :REVEAL_DATA_TRANSITION headline)))))
-               (if (string-empty-p attrs)
+               (if (string= attrs "")
                    "<section>\n"
                  (format "<section %s>\n" attrs))))
          ;; Start a new slide.