diff --git a/doc/02-getting-started.md b/doc/02-getting-started.md
index 285544e70..cffa3a2b4 100644
--- a/doc/02-getting-started.md
+++ b/doc/02-getting-started.md
@@ -102,6 +102,7 @@ zypper ref
 Alpine Linux:
 
 ```
+echo "http://dl-cdn.alpinelinux.org/alpine/edge/main" >> /etc/apk/repositories
 echo "http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories
 apk update
 ```