diff --git a/README.md b/README.md
index 8af736a..563224b 100644
--- a/README.md
+++ b/README.md
@@ -90,6 +90,8 @@ services:
       # Add the following variables if you want to forward any received heartbeats to another
       # Wakatime compatible server.
       HAKA_REMOTE_WRITE_URL: "https://wakatime.com/api/v1/users/current/heartbeats.bulk"
+      # You can also use this URL format to forward heartbeats to Wakapi:
+      # https://[wakapi-instance]/api/compat/wakatime/v1/users/current/heartbeats.bulk
       HAKA_REMOTE_WRITE_TOKEN: "<token>"
     ports:
       - "127.0.0.1:8080:8080"