diff --git a/ChangeLog b/ChangeLog
index d832417b..b3881ab1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-08-06  Tadashi MATSUO  <tad@mymail.twin.jp>
+
+	* twittering-mode.el: Fix options of `curl' for POST with an empty
+	body.
+	(twittering-start-http-session-curl): add an option "-d" whenever
+	`method' equals to "POST".
+
 2010-07-25  Tadashi MATSUO  <tad@mymail.twin.jp>
 
 	* twittering-mode.el (twittering-mode): avoid repeating
diff --git a/twittering-mode.el b/twittering-mode.el
index 80d74b4c..c15a4d41 100644
--- a/twittering-mode.el
+++ b/twittering-mode.el
@@ -3804,15 +3804,18 @@ Z70Br83gcfxaz2TE4JaY0KNA4gGK7ycH8WUBikQtBmV1UsCGECAhX2xrD2yuCRyv
 		  (when (and pair (car pair) (cdr pair))
 		    `("-U" ,(format "%s:%s" (car pair) (cdr pair))))))
 	    ,@(when (string= "POST" method)
-		(apply 'append
-		       (mapcar
-			(lambda (pair)
-			  (list
-			   "-d"
-			   (format "%s=%s"
-				   (twittering-percent-encode (car pair))
-				   (twittering-percent-encode (cdr pair)))))
-			parameters)))
+		(cond
+		 (parameters
+		  (apply 'append
+			 (mapcar
+			  (lambda (pair)
+			    (list
+			     "-d"
+			     (format "%s=%s"
+				     (twittering-percent-encode (car pair))
+				     (twittering-percent-encode (cdr pair)))))
+			  parameters)))
+		 (t '("-d" ""))))
 	    ,(concat (funcall request :uri)
 		     (when parameters
 		       (concat "?" (funcall request :query-string))))))