diff --git a/minode/manager.py b/minode/manager.py
index 6255b07..d7d72e4 100644
--- a/minode/manager.py
+++ b/minode/manager.py
@@ -96,6 +96,7 @@ class Manager(threading.Thread):
                 self.fill_bootstrap_pool()
                 return
             logging.info('Starting a bootstrapper for %s:%s', *target)
+            shared.node_pool.discard(target)
             connect(target, Bootstrapper)
 
         outgoing_connections = 0
@@ -217,7 +218,6 @@ class Manager(threading.Thread):
         ) as src:
             reader = csv.reader(src)
             shared.core_nodes = {(row[0], int(row[1])) for row in reader}
-            shared.node_pool.update(shared.core_nodes)
 
         with open(
             os.path.join(shared.source_directory, 'i2p_core_nodes.csv'),