diff --git a/src/config/api-server/vnc_cfg_types.py b/src/config/api-server/vnc_cfg_types.py
index c59d6ed7b54..9aac95a77da 100644
--- a/src/config/api-server/vnc_cfg_types.py
+++ b/src/config/api-server/vnc_cfg_types.py
@@ -396,7 +396,7 @@ def http_post_collection(cls, tenant_name, obj_dict, db_conn):
                 aaps = aap_config['allowed_address_pair']
                 for aap in aaps or []:
                     if aap['mac'] == "":
-                        aap['mac'] = obj_dict['virtual_machine_interface_mac_addresses']['mac_address']
+                        aap['mac'] = obj_dict['virtual_machine_interface_mac_addresses']['mac_address'][0]
         return True, ""
     # end http_post_collection
 
@@ -413,7 +413,7 @@ def http_put(cls, id, fq_name, obj_dict, db_conn):
                 aaps = aap_config['allowed_address_pair']
                 for aap in aaps or []:
                     if aap['mac'] == "":
-                        aap['mac'] = read_result['virtual_machine_interface_mac_addresses']['mac_address']
+                        aap['mac'] = read_result['virtual_machine_interface_mac_addresses']['mac_address'][0]
         return True, ""
     # end http_put
 # end class VirtualMachineInterfaceServer