diff --git a/window.c b/window.c
index 02a3ea21..6f436471 100644
--- a/window.c
+++ b/window.c
@@ -1,4 +1,4 @@
-/* $Id: window.c,v 1.115 2009-10-12 00:35:08 tcunha Exp $ */
+/* $Id: window.c,v 1.116 2009-10-23 17:09:21 tcunha Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -639,6 +639,9 @@ window_pane_parse(struct window_pane *wp)
 {
 	size_t	new_size;
 
+	if (wp->mode != NULL)
+		return;
+
 	new_size = BUFFER_USED(wp->in) - wp->pipe_off;
 	if (wp->pipe_fd != -1 && new_size > 0)
 		buffer_write(wp->pipe_buf, BUFFER_OUT(wp->in), new_size);