diff --git a/karakeep/README.md b/karakeep/README.md
index 70f594e17..b9922b3aa 100644
--- a/karakeep/README.md
+++ b/karakeep/README.md
@@ -37,6 +37,8 @@ This Home Assistant add-on integrates Karakeep in a **Supervisor-native way**:
 - Secrets are **auto-generated and persisted**
 - Only meaningful user settings are exposed
 
+Add additional environment variables with env_vars : https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon-2
+
 ---
 
 ## Secrets & Security