diff --git a/src/authentic2_pratic/models.py b/src/authentic2_pratic/models.py
index a647637..77bac4c 100644
--- a/src/authentic2_pratic/models.py
+++ b/src/authentic2_pratic/models.py
@@ -266,7 +266,7 @@ class Service(Model):
             unique=True)
     # cdg59sid
     slug = SlugField(
-            verbose_name=('identifier'),
+            verbose_name=_('slug'),
             max_length=128,
             unique=True)
     is_global = BooleanField(
@@ -310,7 +310,7 @@ class ServiceInstanceManager(Manager):
 class ServiceInstance(Model):
     # cdg59sid
     slug = SlugField(
-            verbose_name=('identifier'),
+            verbose_name=_('slug'),
             max_length=128)
     service = ForeignKey(
             'Service',