diff --git a/p4app/controller.py b/p4app/controller.py
index cf43998..3d46370 100755
--- a/p4app/controller.py
+++ b/p4app/controller.py
@@ -225,7 +225,7 @@ class L2Controller(object):
     def init_ndp_in_switch(self, addr):
         icmp6_addr = self.gen_ndp_multicast_addr(addr)
         icmp6_net = "{}/128".format(icmp6_addr)
-        icmp6_type = table_proto['ICMP_NS']
+        icmp6_type = table_proto['ICMP6_NS']
         mac_addr =  self.info['mac_addr']
 
         self.controller.table_add("icmp6",