diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index b537260d74f..114ff5e0b16 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,7 @@
 2000-12-18  Miles Bader  <miles@gnu.org>
 
+	* image-file.el (image-file-name-extensions): Add "pgm" and "ppm".
+
 	* textmodes/artist.el (artist-replace-chars, artist-replace-char): 
 	Check that emacs-major-version is `=' to 20, not `>='.
 	(artist-replace-chars): Use `make-string' instead of a loop.
diff --git a/lisp/image-file.el b/lisp/image-file.el
index ef667085eac..87314f3b90c 100644
--- a/lisp/image-file.el
+++ b/lisp/image-file.el
@@ -38,7 +38,7 @@
 
 ;;;###autoload
 (defcustom image-file-name-extensions
-  '("png" "jpeg" "jpg" "gif" "tiff" "xbm" "xpm" "pbm")
+  '("png" "jpeg" "jpg" "gif" "tiff" "xbm" "xpm" "pbm" "pgm" "ppm")
   "*A list of image-file filename extensions.
 Filenames having one of these extensions are considered image files,
 in addition to those matching `image-file-name-regexps'.