diff --git a/lib/fog/aws/models/rds/cluster.rb b/lib/fog/aws/models/rds/cluster.rb
index ec1cbcc72..b1f52d041 100644
--- a/lib/fog/aws/models/rds/cluster.rb
+++ b/lib/fog/aws/models/rds/cluster.rb
@@ -72,7 +72,7 @@ module Fog
             'BackupRetentionPeriod'      => backup_retention_period,
             'DBClusterIdentifier'        => identity,
             'DBClusterParameterGroup'    => db_cluster_parameter_group,
-            'DBSubnetGroupName'              => db_subnet_group,
+            'DBSubnetGroupName'          => db_subnet_group,
             'Endpoint'                   => endpoint,
             'Engine'                     => engine,
             'EngineVersion'              => engine_version,