diff --git a/nucypher/characters.py b/nucypher/characters.py
index 519928119..276e4b0a3 100644
--- a/nucypher/characters.py
+++ b/nucypher/characters.py
@@ -97,8 +97,6 @@ class Character:
             Character, but there are scenarios in which its imaginable to be
             represented by zero Characters or by more than one Character.
         """
-        self.config = config  # TODO: Do not mix with injectable params
-
         self.federated_only = federated_only
         self._abort_on_learning_error = abort_on_learning_error
 
@@ -476,7 +474,7 @@ class Character:
             new_nodes = self.learn_about_nodes(node_addr, port)
             self._known_nodes.update(new_nodes)
 
-    def get_nodes_by_ids(self, ids):
+    def get_nodes_by_ids(self, node_ids):
         for node_id in node_ids:
             try:
                 # Scenario 1: We already know about this node.
diff --git a/tests/fixtures.py b/tests/fixtures.py
index 5a87219a1..fa7c973e7 100644
--- a/tests/fixtures.py
+++ b/tests/fixtures.py
@@ -188,7 +188,8 @@ def mining_ursulas(three_agents):
                               amount=1000000 * constants.M)
     ursula_addresses = all_yall[:int(constants.NUMBER_OF_URSULAS_IN_NETWORK)]
 
-    _ursulas = make_ursulas(ether_addresses=ursula_addresses,
+    _ursulas = make_ursulas(ursula_starting_port=starting_point,
+                            ether_addresses=ursula_addresses,
                             miner_agent=miner_agent,
                             miners=True,
                             ursula_starting_port=starting_point)