diff --git a/lisp/gnus/ChangeLog b/lisp/gnus/ChangeLog
index eb761d10b27..e0db7c194a7 100644
--- a/lisp/gnus/ChangeLog
+++ b/lisp/gnus/ChangeLog
@@ -1,3 +1,8 @@
+2005-02-03  Katsumi Yamaoka  <yamaoka@jpl.org>
+
+	* gnus-art.el (gnus-mime-inline-part): Show the raw contents if a
+	prefix arg is neither nil nor a number, as info specifies.
+
 2005-01-30  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* gnus-art.el (gnus-article-mode): Turn off the "\ " non-break space.
diff --git a/lisp/gnus/gnus-art.el b/lisp/gnus/gnus-art.el
index 3f8e172c1a8..22d48c3eff0 100644
--- a/lisp/gnus/gnus-art.el
+++ b/lisp/gnus/gnus-art.el
@@ -4354,7 +4354,16 @@ are decompressed."
 	  (setq charset
 		(or (cdr (assq arg
 			       gnus-summary-show-article-charset-alist))
-		    (mm-read-coding-system "Charset: ")))))
+		    (mm-read-coding-system "Charset: "))))
+	 (t
+	  (if (mm-handle-undisplayer handle)
+	      (mm-remove-part handle))
+	  (setq contents
+		(if (fboundp 'string-to-multibyte)
+		    (string-to-multibyte contents)
+		  (mapconcat
+		   (lambda (ch) (mm-string-as-multibyte (char-to-string ch)))
+		   contents "")))))
 	(forward-line 2)
 	(mm-insert-inline handle
 			  (if (and charset