diff --git a/jandd/sphinxext/ip.py b/jandd/sphinxext/ip.py
index 6ac0a88..d66a8ec 100644
--- a/jandd/sphinxext/ip.py
+++ b/jandd/sphinxext/ip.py
@@ -231,7 +231,7 @@ def process_ips(app, doctree):
 
 
 def sort_ip_info(item):
-    return item['ip']
+    return Network(item['ip']).ip
 
 
 def process_ip_nodes(app, doctree, fromdocname):