diff --git a/subscriptions/models.py b/subscriptions/models.py
index <HASH>..<HASH> 100644
--- a/subscriptions/models.py
+++ b/subscriptions/models.py
@@ -111,8 +111,9 @@ def fire_metric_per_lang(sender, instance, created, **kwargs):
     Fires metrics according to the language of the subscription.
     """
     from .tasks import fire_metric
+    from seed_stage_based_messaging.utils import normalise_metric_name
     if created:
-        lang = instance.lang
+        lang = normalise_metric_name(instance.lang)
         fire_metric.apply_async(kwargs={
             "metric_name": "subscriptions.language.{}.sum".format(lang),
             "metric_value": 1.0,
added normalise metric name to the fire metric function