diff --git a/usr/share/byobu/profiles/tmux b/usr/share/byobu/profiles/tmux
index 20858444..25c0d2bf 100644
--- a/usr/share/byobu/profiles/tmux
+++ b/usr/share/byobu/profiles/tmux
@@ -61,7 +61,7 @@ set-window-option -g monitor-activity on
 set -g default-terminal "$BYOBU_TERM"
 
 # The following helps with Shift-PageUp/Shift-PageDown
-set -g terminal-overrides 'xterm*:smcup@:rmcup@'
+set -ga terminal-overrides 'xterm*:smcup@:rmcup@'
 
 # Must set default-command to $SHELL, in order to not source ~/.profile
 # BUG: Should *not* hardcode /bin/bash here