diff --git a/watcher/common/nova_helper.py b/watcher/common/nova_helper.py
index 2f30fd441..5600b7192 100644
--- a/watcher/common/nova_helper.py
+++ b/watcher/common/nova_helper.py
@@ -90,6 +90,22 @@ class NovaHelper(object):
         return self.nova.servers.list(search_opts=search_opts,
                                       limit=-1)
 
+    def get_instance_by_uuid(self, instance_uuid):
+        return [instance for instance in
+                self.nova.servers.list(search_opts={"all_tenants": True,
+                                                    "uuid": instance_uuid})]
+
+    def get_instance_by_name(self, instance_name):
+        return [instance for instance in
+                self.nova.servers.list(search_opts={"all_tenants": True,
+                                                    "name": instance_name})]
+
+    def get_instances_by_node(self, host):
+        return [instance for instance in
+                self.nova.servers.list(search_opts={"all_tenants": True,
+                                                    "host": host},
+                                       limit=-1)]
+
     def get_flavor_list(self):
         return self.nova.flavors.list(**{'is_public': None})
 
@@ -667,22 +683,6 @@ class NovaHelper(object):
 
         return network_id
 
-    def get_instance_by_uuid(self, instance_uuid):
-        return [instance for instance in
-                self.nova.servers.list(search_opts={"all_tenants": True,
-                                                    "uuid": instance_uuid})]
-
-    def get_instance_by_name(self, instance_name):
-        return [instance for instance in
-                self.nova.servers.list(search_opts={"all_tenants": True,
-                                                    "name": instance_name})]
-
-    def get_instances_by_node(self, host):
-        return [instance for instance in
-                self.nova.servers.list(search_opts={"all_tenants": True,
-                                                    "host": host},
-                                       limit=-1)]
-
     def get_hostname(self, instance):
         return str(getattr(instance, 'OS-EXT-SRV-ATTR:host'))