diff --git a/lisp/org-agenda.el b/lisp/org-agenda.el
index b7226f165..40db218f5 100644
--- a/lisp/org-agenda.el
+++ b/lisp/org-agenda.el
@@ -6447,7 +6447,7 @@ The flag is set if the currently compiled format contains a `%b'.")
 
 (defun org-agenda-get-category-icon (category)
   "Return an image for CATEGORY according to `org-agenda-category-icon-alist'."
-  (dolist (entry org-agenda-category-icon-alist)
+  (cl-dolist (entry org-agenda-category-icon-alist)
     (when (string-match-p (car entry) category)
       (if (listp (cadr entry))
 	  (cl-return (cadr entry))