diff --git a/doc/emacs/files.texi b/doc/emacs/files.texi
index 2a7017779f6..e15ab605db1 100644
--- a/doc/emacs/files.texi
+++ b/doc/emacs/files.texi
@@ -2489,7 +2489,7 @@ select a group of images to copy somewhere else).  The @kbd{m}
 (@code{image-mode-mark-file}) command will mark the current file in
 any Dired buffer(s) that display the current file's directory.  If no
 such buffer is open, the directory is opened in a new buffer.  To
-unmark files, use the @kbd{u} (@code{image-mode-mark-file}) command.
+unmark files, use the @kbd{u} (@code{image-mode-unmark-file}) command.
 Finally, if you just want to copy the current buffers file name to the
 kill ring, you can use the @kbd{w}
 (@code{image-mode-copy-file-name-as-kill}) command.