diff --git a/monasca_api/common/repositories/sqla/alarm_definitions_repository.py b/monasca_api/common/repositories/sqla/alarm_definitions_repository.py
index 1dc528c30..eb53b5d89 100644
--- a/monasca_api/common/repositories/sqla/alarm_definitions_repository.py
+++ b/monasca_api/common/repositories/sqla/alarm_definitions_repository.py
@@ -417,8 +417,7 @@ class AlarmDefinitionsRepository(sql_repository.SQLRepository,
             for sub_expr in sub_expr_list:
                 sub_alarm_definition_id = uuidutils.generate_uuid()
                 sub_expr.id = sub_alarm_definition_id
-
-                metric_name = sub_expr.normalized_metric_name.encode("utf8")
+                metric_name = sub_expr.metric_name.encode("utf8")
                 operator = sub_expr.normalized_operator.encode('utf8')
                 conn.execute(self.create_alarm_definition_insert_sad_query,
                              b_id=sub_alarm_definition_id,
diff --git a/monasca_api/v2/reference/alarm_definitions.py b/monasca_api/v2/reference/alarm_definitions.py
index 99cdae80e..3a8418c98 100644
--- a/monasca_api/v2/reference/alarm_definitions.py
+++ b/monasca_api/v2/reference/alarm_definitions.py
@@ -585,7 +585,7 @@ class AlarmDefinitions(alarm_definitions_api_v2.AlarmDefinitionsV2API,
         for sub_expr in sub_expr_list:
             sub_expr_event_msg[sub_expr.id] = {
                 u'function': sub_expr.normalized_func}
-            metric_definition = {u'name': sub_expr.normalized_metric_name}
+            metric_definition = {u'name': sub_expr.metric_name}
             sub_expr_event_msg[sub_expr.id][
                 u'metricDefinition'] = metric_definition
             dimensions = {}