diff --git a/authens/backends.py b/authens/backends.py
index fb164a7..38da33c 100644
--- a/authens/backends.py
+++ b/authens/backends.py
@@ -107,6 +107,7 @@ class ENSCASBackend:
                 CASAccount.objects.create(
                     user=user, entrance_year=entrance_year, cas_login=cas_login
                 )
+                post_cas_create.send(user, cas_login=cas_login, attributes=attributes)
         return user
 
     # Django boilerplate.
diff --git a/authens/signals.py b/authens/signals.py
new file mode 100644
index 0000000..4c50aa2
--- /dev/null
+++ b/authens/signals.py
@@ -0,0 +1,3 @@
+import django.dispatch
+
+post_cas_create = django.dispatch.Signal()