diff --git a/resources/network_handler.py b/resources/network_handler.py
index 8f2b9d301..327e2a166 100644
--- a/resources/network_handler.py
+++ b/resources/network_handler.py
@@ -301,5 +301,6 @@ class DownloadObject:
         """
 
         self.should_stop = True
-        if self.active_thread.is_alive():
-            time.sleep(1)
\ No newline at end of file
+        if self.active_thread:
+            while self.active_thread.is_alive():
+                time.sleep(1)
\ No newline at end of file