diff --git a/pingscan.py b/pingscan.py
index 7d4c486..1acec30 100644
--- a/pingscan.py
+++ b/pingscan.py
@@ -9,7 +9,7 @@ from importlib import util
 threading_spec = util.find_spec("threading")
 queue_spec = util.find_spec("queue")
 
-if threading_spec is not None:
+if threading_spec is not None and queue_spec is not None:
     import threading
     import queue
     NUM_THREADS = 10
diff --git a/portscan.py b/portscan.py
index 5d1ae51..a6e850c 100644
--- a/portscan.py
+++ b/portscan.py
@@ -8,7 +8,7 @@ from importlib import util
 threading_spec = util.find_spec("threading")
 queue_spec = util.find_spec("queue")
 
-if threading_spec is not None:
+if threading_spec is not None and queue_spec is not None:
     import threading
     import queue
     NUM_THREADS = 10