diff --git a/debian/changelog b/debian/changelog
index b6850c4b..6ff94422 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -17,6 +17,11 @@ byobu (5.2) unreleased; urgency=low
   * usr/lib/byobu/ec2_cost, usr/lib/byobu/network:
     - use /proc/net/dev for network transfer calculations
     - fixes issue with ifconfig format changes
+  * usr/share/byobu/keybindings/f-keys.tmux,
+    usr/share/byobu/keybindings/f-keys.tmux.disable,
+    usr/share/doc/byobu/help.tmux.txt: LP: #912637
+    - change prev/next window keybinding from alt-left/right to
+      ctrl-shift-left/right;  seems alt-left-right are used by irssi
 
  -- Dustin Kirkland <kirkland@ubuntu.com>  Thu, 29 Dec 2011 12:28:51 -0600
 
diff --git a/usr/share/byobu/keybindings/f-keys.tmux b/usr/share/byobu/keybindings/f-keys.tmux
index 13abe6f3..23af18aa 100644
--- a/usr/share/byobu/keybindings/f-keys.tmux
+++ b/usr/share/byobu/keybindings/f-keys.tmux
@@ -31,8 +31,8 @@ bind-key -n S-F2 display-panes \; split-window -v
 bind-key -n C-S-F2 new-session
 bind-key -n F3 previous-window
 bind-key -n F4 next-window
-bind-key -n M-Left previous-window
-bind-key -n M-Right next-window
+bind-key -n C-S-Left previous-window
+bind-key -n C-S-Right next-window
 bind-key -n M-Up choose-session \; send-keys Up \; send-keys Enter
 bind-key -n M-Down choose-session \; send-keys Down \; send-keys Enter
 bind-key -n S-F3 display-panes \; select-pane -t :.-
diff --git a/usr/share/byobu/keybindings/f-keys.tmux.disable b/usr/share/byobu/keybindings/f-keys.tmux.disable
index 8aeeec4c..b1c75998 100644
--- a/usr/share/byobu/keybindings/f-keys.tmux.disable
+++ b/usr/share/byobu/keybindings/f-keys.tmux.disable
@@ -27,8 +27,8 @@ unbind-key -n S-F2
 unbind-key -n C-S-F2
 unbind-key -n F3
 unbind-key -n F4
-unbind-key -n M-Left
-unbind-key -n M-Right
+unbind-key -n C-S-Left
+unbind-key -n C-S-Right
 unbind-key -n M-Up
 unbind-key -n M-Down
 unbind-key -n S-F3
diff --git a/usr/share/doc/byobu/help.tmux.txt b/usr/share/doc/byobu/help.tmux.txt
index 2108c22c..7ecc2c1c 100644
--- a/usr/share/doc/byobu/help.tmux.txt
+++ b/usr/share/doc/byobu/help.tmux.txt
@@ -12,9 +12,9 @@ and some convenient keybindings:
     Shift-F3/F4                 Move focus among splits
     Ctrl-F3/F4                  Move a split
     Ctrl-Shift-F3/F4            Move a window
-    Alt-Left/Right              Move focus among windows
     Alt-Up/Down                 Move focus among sessions
     Shift-Left/Right/Up/Down    Move focus among splits
+    Ctrl-Shift-Left/Right       Move focus among windows
     Ctrl-Left/Right/Up/Down     Resize a split
   F5                            Reload profile, refresh status
     Shift-F5                    Toggle through status lines