diff --git a/dots/i3status/config b/dots/i3status/config
index 6db5bf5..549824e 100644
--- a/dots/i3status/config
+++ b/dots/i3status/config
@@ -51,6 +51,7 @@ disk "/" {
     format = " / ⛁ %avail "
     low_threshold = 10
     threshold_type = "percentage_avail"
+    format_below_threshold = "WARNING: / ⛁ %avail (%percentage_avail%) "
 }
 
 disk "/media/drive2" {