diff --git a/p4app/controller.py b/p4app/controller.py
index acc0f3b..08ec9ac 100644
--- a/p4app/controller.py
+++ b/p4app/controller.py
@@ -119,7 +119,7 @@ class L2Controller(object):
                 self.nat64_map[mode].append({
                     "v6_network": v6_net,
                     "v4_network": v4_net,
-                    "nat64_prefix": self.info['nat64_nat_prefix']
+                    "nat64_prefix": self.info['nat64_prefix']
                 })
 
         self.init_boilerplate(sw_name)