diff --git a/include/automations/tesla_stop_when_full.yaml b/include/automations/tesla_stop_when_full.yaml
index 2758382..03d795d 100644
--- a/include/automations/tesla_stop_when_full.yaml
+++ b/include/automations/tesla_stop_when_full.yaml
@@ -2,8 +2,8 @@
   trigger:
     - platform: template
       value_template: >
-        {{ states('sensor.snowywhite_battery')|float >=
-           states('number.snowywhite_charge_limit')|float }}
+        {{ (states('sensor.snowywhite_battery') | default(0)) | float >=
+           (states('number.snowywhite_charge_limit') | default(100)) | float }}
 
   action:
     - service: switch.turn_off