diff --git a/ovsdbapp/schema/ovn_northbound/commands.py b/ovsdbapp/schema/ovn_northbound/commands.py
index bb06d55d..479d3ff1 100644
--- a/ovsdbapp/schema/ovn_northbound/commands.py
+++ b/ovsdbapp/schema/ovn_northbound/commands.py
@@ -443,8 +443,8 @@ class LspSetAddressesCommand(cmd.BaseCommand):
         for addr in addresses:
             if not self.addr_re.match(addr):
                 raise TypeError(
-                    "address must be router/unknown/dynamic/"
-                    "ethaddr[ ipaddr...]")
+                    "address (%s) must be router/unknown/dynamic/"
+                    "ethaddr[ ipaddr...]" % (addr,))
         super(LspSetAddressesCommand, self).__init__(api)
         self.port = port
         self.addresses = addresses
diff --git a/ovsdbapp/tests/functional/schema/ovn_northbound/test_impl_idl.py b/ovsdbapp/tests/functional/schema/ovn_northbound/test_impl_idl.py
index 7cc18437..d2b19014 100644
--- a/ovsdbapp/tests/functional/schema/ovn_northbound/test_impl_idl.py
+++ b/ovsdbapp/tests/functional/schema/ovn_northbound/test_impl_idl.py
@@ -489,7 +489,7 @@ class TestLspOps(OvnNorthboundTest):
     def test_lsp_set_addresses_invalid(self):
         self.assertRaises(
             TypeError,
-            self.api.lsp_set_addresses, 'fake', 'invalidaddress')
+            self.api.lsp_set_addresses, 'fake', ['invalidaddress'])
 
     def test_lsp_get_addresses(self):
         addresses = [