diff --git a/README.md b/README.md
index 554faf2..aa07cc6 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,6 @@ Federated Lightning Address Server
 
 1. Download the binary from the releases page (or compile with `go build` or `go get`)
 2. Set the following environment variables somehow (using example values from bitmia.com):
-(note that DOMAIN can be a comma-seperated list or a single domain, when using multiple domains
-you need to make sure "Host" HTTP header is forwarded to satdress process if you have some reverse-proxy)
 
 ```
 PORT=17422
@@ -21,6 +19,17 @@ SITE_NAME=Bitmia
 3. Start the app with `./satdress`
 4. Serve the app to the world on your domain using whatever technique you're used to
 
+## Multiple domains
+
+Note that DOMAIN can be a single domain or a comma-separated list. When using multiple domains
+you need to make sure "Host" HTTP header is forwarded to satdress process if you have some reverse-proxy).
+
+If you come from an old installation everything should get migrated in a seamless way, but there is also a
+FORCE_MIGRATE environment variable to force a migration (else this is done just the first time).
+
+There is also a GLOBAL_USERS to make sure the user@ part is unique across all domains. But be warned that when enabling
+this option, existing users won't work anymore (which is by design).
+
 ## Get help
 
 Maybe ask for help on https://t.me/lnurl if you're in trouble.
diff --git a/db.go b/db.go
index 411dca0..3a143cf 100644
--- a/db.go
+++ b/db.go
@@ -130,7 +130,7 @@ func tryMigrate(old, new string) {
 	defer iter.Close()
 
 	for iter.First(); iter.Valid(); iter.Next() {
-		log.Debug().Str("db", string(iter.Key())).Msg("Migrating key")
+		log.Debug().Str("key", string(iter.Key())).Msg("Migrating key")
 		var params Params
 		if err := json.Unmarshal(iter.Value(), &params); err != nil {
 			log.Debug().Err(err).Msg("Unmarshal error")