diff --git a/i3status.conf b/i3status.conf
index 6b1d2d7..01c182c 100644
--- a/i3status.conf
+++ b/i3status.conf
@@ -53,5 +53,5 @@ load {
 }
 
 disk "/" {
-        format = "%free"
+        format = "%avail"
 }