diff --git a/py-json/LANforge/LFUtils.py b/py-json/LANforge/LFUtils.py
index 62766311..088b01f8 100644
--- a/py-json/LANforge/LFUtils.py
+++ b/py-json/LANforge/LFUtils.py
@@ -445,7 +445,10 @@ def waitUntilPortsDisappear(base_url="http://localhost:8080", port_list=[], debu
 def wait_until_ports_disappear(base_url="http://localhost:8080", port_list=[], debug=False):
     print("Waiting until ports disappear...")
     url = "/port/1"
-    found_stations = port_list.copy()
+    if isinstance(port_list, list):
+        found_stations = port_list.copy()
+    else:
+        found_stations = [port_list]
 
     while len(found_stations) > 0:
         found_stations = []