diff --git a/lisp/files.el b/lisp/files.el
index f0cfa2e39b3..1d2ef6fde7f 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -2977,6 +2977,7 @@ ARC\\|ZIP\\|LZH\\|LHA\\|ZOO\\|[JEW]AR\\|XPI\\|RAR\\|CBR\\|7Z\\|SQUASHFS\\)\\'" .
      ("\\.dng\\'" . image-mode)
      ("\\.dpx\\'" . image-mode)
      ("\\.fax\\'" . image-mode)
+     ("\\.heic\\'" . image-mode)
      ("\\.hrz\\'" . image-mode)
      ("\\.icb\\'" . image-mode)
      ("\\.icc\\'" . image-mode)