diff --git a/configuration/automations/hallway-doorbell.yaml b/configuration/automations/hallway-doorbell.yaml
index e7bb8ef..5ee68db 100644
--- a/configuration/automations/hallway-doorbell.yaml
+++ b/configuration/automations/hallway-doorbell.yaml
@@ -34,7 +34,8 @@
                 value: 'Door bell music'
             - service: switch.turn_on
               entity_id: switch.siren_switch
-            - delay: '30'
+            - delay:
+                milliseconds: 30
             - service: light.turn_on
               data:
                 hs_color: [ 240,100 ]