diff --git a/CHANGES b/CHANGES
index 64d4cb88..9fd37576 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,6 @@
 14 January 2009
 
+* The alt-up and alt-down keys now resize a pane by five lines at a time.
 * switch-pane is now select-pane and requires -p to select a pane. The
   "o" key binding is changed to down-pane.
 * up-pane and down-pane commands, bound to arrow up and down by default.
@@ -917,7 +918,7 @@
   (including mutt, emacs). No status bar yet and no key remapping or other
   customisation.
 
-$Id: CHANGES,v 1.205 2009-01-14 19:56:55 nicm Exp $
+$Id: CHANGES,v 1.206 2009-01-14 21:08:52 nicm Exp $
 
  LocalWords:  showw utf UTF fulvio ciriaco joshe OSC APC gettime abc DEF OA clr
  LocalWords:  rivo nurges lscm Erdely eol smysession mysession ek dstname RB
diff --git a/cmd-resize-pane-down.c b/cmd-resize-pane-down.c
index 4f61db45..4707ab9e 100644
--- a/cmd-resize-pane-down.c
+++ b/cmd-resize-pane-down.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-resize-pane-down.c,v 1.2 2009-01-14 19:29:32 nicm Exp $ */
+/* $Id: cmd-resize-pane-down.c,v 1.3 2009-01-14 21:08:52 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,13 +26,14 @@
  * Decrease pane size.
  */
 
+void	cmd_resize_pane_down_init(struct cmd *, int);
 void	cmd_resize_pane_down_exec(struct cmd *, struct cmd_ctx *);
 
 const struct cmd_entry cmd_resize_pane_down_entry = {
 	"resize-pane-down", "resizep-down",
 	CMD_PANE_WINDOW_USAGE " [adjustment]",
 	CMD_ZEROONEARG,
-	cmd_pane_init,
+	cmd_resize_pane_down_init,
 	cmd_pane_parse,
 	cmd_resize_pane_down_exec,
        	cmd_pane_send,
@@ -41,6 +42,18 @@ const struct cmd_entry cmd_resize_pane_down_entry = {
 	cmd_pane_print
 };
 
+void
+cmd_resize_pane_down_init(struct cmd *self, int key)
+{
+	struct cmd_pane_data	*data;
+
+	cmd_pane_init(self, key);
+	data = self->data;
+
+	if (key == KEYC_ADDESC(KEYC_DOWN))
+		data->arg = xstrdup("5");
+}
+
 void
 cmd_resize_pane_down_exec(struct cmd *self, struct cmd_ctx *ctx)
 {
diff --git a/cmd-resize-pane-up.c b/cmd-resize-pane-up.c
index 82f8f8ec..8fd67f09 100644
--- a/cmd-resize-pane-up.c
+++ b/cmd-resize-pane-up.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-resize-pane-up.c,v 1.2 2009-01-14 19:29:32 nicm Exp $ */
+/* $Id: cmd-resize-pane-up.c,v 1.3 2009-01-14 21:08:52 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,13 +26,14 @@
  * Increase pane size.
  */
 
+void	cmd_resize_pane_up_init(struct cmd *, int);
 void	cmd_resize_pane_up_exec(struct cmd *, struct cmd_ctx *);
 
 const struct cmd_entry cmd_resize_pane_up_entry = {
 	"resize-pane-up", "resizep-up",
 	CMD_PANE_WINDOW_USAGE " [adjustment]",
 	CMD_ZEROONEARG,
-	cmd_pane_init,
+	cmd_resize_pane_up_init,
 	cmd_pane_parse,
 	cmd_resize_pane_up_exec,
        	cmd_pane_send,
@@ -41,6 +42,18 @@ const struct cmd_entry cmd_resize_pane_up_entry = {
 	cmd_pane_print
 };
 
+void
+cmd_resize_pane_up_init(struct cmd *self, int key)
+{
+	struct cmd_pane_data	*data;
+
+	cmd_pane_init(self, key);
+	data = self->data;
+
+	if (key == KEYC_ADDESC(KEYC_UP))
+		data->arg = xstrdup("5");
+}
+
 void
 cmd_resize_pane_up_exec(struct cmd *self, struct cmd_ctx *ctx)
 {
diff --git a/key-bindings.c b/key-bindings.c
index 04fa87e7..d7961bfe 100644
--- a/key-bindings.c
+++ b/key-bindings.c
@@ -1,4 +1,4 @@
-/* $Id: key-bindings.c,v 1.48 2009-01-14 19:56:55 nicm Exp $ */
+/* $Id: key-bindings.c,v 1.49 2009-01-14 21:08:52 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -111,6 +111,8 @@ key_bindings_init(void)
 		{ 'x', &cmd_kill_pane_entry, },	
 		{ KEYC_UP, &cmd_up_pane_entry },
 		{ KEYC_DOWN, &cmd_down_pane_entry },
+		{ KEYC_ADDESC(KEYC_UP), &cmd_resize_pane_up_entry },
+		{ KEYC_ADDESC(KEYC_DOWN), &cmd_resize_pane_down_entry },
 		{ KEYC_ADDCTL(KEYC_UP), &cmd_resize_pane_up_entry },
 		{ KEYC_ADDCTL(KEYC_DOWN), &cmd_resize_pane_down_entry },
 		{ META, &cmd_send_prefix_entry },