diff --git a/barker/barker/routers/modifier_category.py b/barker/barker/routers/modifier_category.py
index d7ce4be..3621621 100644
--- a/barker/barker/routers/modifier_category.py
+++ b/barker/barker/routers/modifier_category.py
@@ -298,7 +298,7 @@ def modifier_category_blank(date_: date, db: Session) -> schemas.ModifierCategor
 def add_products(modifier_category: ModifierCategory, menu_categories: list[schemas.MenuCategoryLink], db: Session):
     for mc in menu_categories:
         for p in mc.products:
-            old = next([x for x in modifier_category.products if x.id == p.id_], None)
+            old = next((x for x in modifier_category.products if x.id == p.id_), None)
             if p.enabled and old is None:
                 product_object = db.execute(select(Product).where(Product.id == p.id_)).scalar_one()
                 modifier_category.products.append(product_object)
diff --git a/barker/barker/routers/role.py b/barker/barker/routers/role.py
index 9ac9973..9238a89 100644
--- a/barker/barker/routers/role.py
+++ b/barker/barker/routers/role.py
@@ -141,7 +141,7 @@ def role_blank(db: Session) -> schemas.RoleBlank:
 
 def add_permissions(role: Role, permissions: list[schemas.PermissionItem], db: Session):
     for permission in permissions:
-        gp = next([p for p in role.permissions if p.id == permission.id_], None)
+        gp = next((p for p in role.permissions if p.id == permission.id_), None)
         if permission.enabled and gp is None:
             role.permissions.append(db.execute(select(Permission).where(Permission.id == permission.id_)).scalar_one())
         elif not permission.enabled and gp:
diff --git a/barker/barker/routers/user.py b/barker/barker/routers/user.py
index 0925801..74afe96 100644
--- a/barker/barker/routers/user.py
+++ b/barker/barker/routers/user.py
@@ -93,7 +93,7 @@ def update_route(
 
 def add_roles(user: User, roles: list[schemas.RoleItem], db: Session):
     for role in roles:
-        ug = next([g for g in user.roles if g.id == role.id_], None)
+        ug = next((g for g in user.roles if g.id == role.id_), None)
         if role.enabled and ug is None:
             user.roles.append(db.execute(select(Role).where(Role.id == role.id_)).scalar_one())
         elif not role.enabled and ug: