diff --git a/ee/api/routers/core_dynamic.py b/ee/api/routers/core_dynamic.py
index c02c4f2f9..d24f9392f 100644
--- a/ee/api/routers/core_dynamic.py
+++ b/ee/api/routers/core_dynamic.py
@@ -103,7 +103,7 @@ def add_member(background_tasks: BackgroundTasks, data: schemas_ee.CreateMemberS
 @public_app.get('/users/invitation', tags=['users'])
 def process_invitation_link(token: str, request: Request):
     if config("enforce_SSO", cast=bool, default=False) and helper.is_saml2_available():
-        return saml.start_sso(request=request)
+        return await saml.start_sso(request=request)
     if token is None or len(token) < 64:
         return {"errors": ["please provide a valid invitation"]}
     user = users.get_by_invitation_token(token)