diff --git a/providers/dns/lightsail/lightsail.go b/providers/dns/lightsail/lightsail.go
index 9cd6e8c8..94419c23 100644
--- a/providers/dns/lightsail/lightsail.go
+++ b/providers/dns/lightsail/lightsail.go
@@ -24,7 +24,7 @@ const (
 const (
 	envNamespace = "LIGHTSAIL_"
 
-	EnvRegion  = envNamespace + "LIGHTSAIL_REGION"
+	EnvRegion  = envNamespace + "REGION"
 	EnvDNSZone = "DNS_ZONE"
 
 	EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"