diff --git a/bittensor/utils/registration.py b/bittensor/utils/registration.py
index 6c504b05f1..fb9cdcde20 100644
--- a/bittensor/utils/registration.py
+++ b/bittensor/utils/registration.py
@@ -3,6 +3,7 @@
 import hashlib
 import math
 import multiprocessing
+import multiprocessing.queues  # this must be imported separately, or could break type annotations
 import os
 import random
 import time
@@ -1082,11 +1083,14 @@ def _solve_for_difficulty_fast_cuda(
 
 
 def _terminate_workers_and_wait_for_exit(
-    workers: List[multiprocessing.Process],
+    workers: List[Union[multiprocessing.Process, multiprocessing.queues.Queue]],
 ) -> None:
     for worker in workers:
-        worker.terminate()
-        worker.join()
+        if isinstance(worker, multiprocessing.queues.Queue):
+            worker.join_thread()
+        else:
+            worker.join()
+        worker.close()
 
 
 def create_pow(