diff --git a/glances.conf b/glances.conf
index 03c393427f4e9d5c3f150d6f2c55391ea151b8da..ed7e782f55bce42be8e680900eed44543bfab8b4 100644
--- a/glances.conf
+++ b/glances.conf
@@ -69,7 +69,7 @@ steal_critical=90
 user_careful=50
 user_warning=70
 user_critical=35
-user_critical_action=echo {{CPU}} {{35}} > /tmp/fs.alert
+user_critical_action=echo {{device_name}} {{percentage}} > /tmp/fs.alert
 iowait_careful=50
 iowait_warning=70
 iowait_critical=90