diff --git a/inactive-row.conf b/inactive-row.conf
index 9386468..486ee83 100644
--- a/inactive-row.conf
+++ b/inactive-row.conf
@@ -1,8 +1,10 @@
 # Change the background color to unactive
 setw -g window-status-current-style bg=$inactive_window_bg
 
-# Unbind prefix
-set -u -g prefix C-a
+# Unbind prefix (and "disable" by changing to something obscure)
+unbind C-a
+set -g prefix C-F12
+bind C-F12 send-prefix
 
 # Unbind each unprefixed command
 unbind -n M-left