1 files changed, 9 insertions, 6 deletions
diff --git a/ennum.el b/ennum.el
index 49caef0..57b76cd 100644
--- a/ennum.el
+++ b/ennum.el
@@ -294,15 +294,18 @@ last form in BODY."
      (insert-file-contents ,file)
      ,@body))
 
-(defun ennum-directory-files (directory &optional full include-directories)
+(defun ennum-directory-files (&optional directory full include-directories)
   "Return recursively the list of all files under DIRECTORY. Files are
 returned in depth first order.
 
-If FULL is non-nil, absolute file names are returned. Else, the
-file names are relative to DIRECTORY. If INCLUDE-DIRECTORIES is
-non-nil, include directories in the output."
-  (let ((files (directory-files-recursively
-                directory (rx anything) include-directories)))
+If DIRECTORY is nil, the current working directory is assumed. If
+FULL is non-nil, absolute file names are returned. Else, the file
+names are relative to the current directory. If
+INCLUDE-DIRECTORIES is non-nil, include directories in the
+output."
+  (let* ((directory (or directory default-directory))
+         (files (directory-files-recursively
+                 directory (rx anything) include-directories)))
     (if full
         files
       (seq-map (apply-partially 'string-remove-prefix