diff --git a/test/functional/test_framework/p2p.py b/test/functional/test_framework/p2p.py
index 986eaf1e88e..f8e030add95 100755
--- a/test/functional/test_framework/p2p.py
+++ b/test/functional/test_framework/p2p.py
@@ -743,7 +743,7 @@ class NetworkThread(threading.Thread):
         """Start the network thread."""
         self.network_event_loop.run_forever()
 
-    def close(self, *, timeout=10):
+    def close(self, *, timeout):
         """Close the connections and network event loop."""
         self.network_event_loop.call_soon_threadsafe(self.network_event_loop.stop)
         wait_until_helper_internal(lambda: not self.network_event_loop.is_running(), timeout=timeout)
diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py
index ecc9ffa2310..1f957564453 100755
--- a/test/functional/test_framework/test_framework.py
+++ b/test/functional/test_framework/test_framework.py
@@ -278,7 +278,7 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
             pdb.set_trace()
 
         self.log.debug('Closing down network thread')
-        self.network_thread.close()
+        self.network_thread.close(timeout=self.options.timeout_factor * 10)
         if self.success == TestStatus.FAILED:
             self.log.info("Not stopping nodes as test failed. The dangling processes will be cleaned up later.")
         else: