diff --git a/accountant/views/operations.py b/accountant/views/operations.py
index 0679c15..2e2005a 100644
--- a/accountant/views/operations.py
+++ b/accountant/views/operations.py
@@ -127,6 +127,9 @@ class OperationListResource(Resource):
         data = self.api.payload
 
         account_id = data['account_id']
+
+        # FIXME Alexis Lahouze 2017-05-19 Check account_id presence.
+
         account = Account.query().get(account_id)
 
         if not account:
diff --git a/accountant/views/users.py b/accountant/views/users.py
index 868aa81..d8919ad 100644
--- a/accountant/views/users.py
+++ b/accountant/views/users.py
@@ -90,4 +90,6 @@ class LoginResource(Resource):
         """Get authenticated user information."""
         user = User.query().get(get_jwt_identity())
 
+        # FIXME Alexis Lahouze 2017-05-19 Check user presence
+
         return user, 200