diff --git a/src/flow/lib/ServiceAutoScaler.rb b/src/flow/lib/ServiceAutoScaler.rb
index 60c67e0b08..daf29950d6 100644
--- a/src/flow/lib/ServiceAutoScaler.rb
+++ b/src/flow/lib/ServiceAutoScaler.rb
@@ -44,6 +44,7 @@ class ServiceAutoScaler
             monitoring = XMLElement.new(XMLElement.build_xml(monitoring,
                                                              'MONITORING_DATA'))
             monitoring = monitoring.to_hash['MONITORING_DATA']['MONITORING']
+            monitoring = [monitoring].flatten
 
             vm_pool.info_all_extended