diff --git a/src/apex/plugins/apexparadigm/__init__.py b/src/apex/plugins/apexparadigm/__init__.py
index 1de388553bc26f06697c73a14923737578bd9cf0..18e4c4b594cf9df750eb7796f06d1828f563136a 100644
--- a/src/apex/plugins/apexparadigm/__init__.py
+++ b/src/apex/plugins/apexparadigm/__init__.py
@@ -137,7 +137,7 @@ class ApexParadigmPlugin(object):
 
         selected_hop = {}
         node = None
-        ssid = None
+        ssid = 0
         for hop_index in reversed(range(0, len(frame['path']))):
             hop = frame['path'][hop_index]
             # If this is the last node before a spent node, or a spent node itself, we are done