diff --git a/docs/en/customization.md b/docs/en/customization.md
index 74ceea0..d47412f 100644
--- a/docs/en/customization.md
+++ b/docs/en/customization.md
@@ -253,7 +253,7 @@ You can easily force a timezone by adding this to your ESPHome settings:
 
 ```yaml
 time:
-  - id:!extend time_provider
+  - id: !extend time_provider
     timezone: "America/Cancun"
 ```