diff --git a/dbus/dbus-transport-socket.c b/dbus/dbus-transport-socket.c
index 0b8efe7f..05acde0c 100644
--- a/dbus/dbus-transport-socket.c
+++ b/dbus/dbus-transport-socket.c
@@ -476,6 +476,9 @@ do_authentication (DBusTransport *transport,
           _dbus_verbose (" %s auth state: authenticated\n",
                          TRANSPORT_SIDE (transport));
           break;
+
+        case DBUS_AUTH_STATE_INVALID:
+          /* fall through */
         default:
           _dbus_assert_not_reached ("invalid auth state");
         }
diff --git a/dbus/dbus-transport.c b/dbus/dbus-transport.c
index 9ff9bef6..b1932c32 100644
--- a/dbus/dbus-transport.c
+++ b/dbus/dbus-transport.c
@@ -410,6 +410,9 @@ _dbus_transport_open (DBusAddressEntry *entry,
           _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
           goto out;
           break;
+        default:
+          _dbus_assert_not_reached ("invalid transport open result");
+          break;
         }
     }