diff --git a/lisp/org.el b/lisp/org.el
index 25b269366..57a8cda3c 100755
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -4101,6 +4101,7 @@ Org mode to function properly:
 - inputenc, fontenc:  for basic font and character selection
 - fixltx2e: Important patches of LaTeX itself
 - graphicx: for including images
+- grffile: allow periods and spaces in graphics file names
 - longtable: For multipage tables
 - float, wrapfig: for figure placement
 - rotating: for sideways figures and tables