diff --git a/spa/plugins/bluez5/a2dp-sink.c b/spa/plugins/bluez5/a2dp-sink.c
index 967ec3958..8646c8111 100644
--- a/spa/plugins/bluez5/a2dp-sink.c
+++ b/spa/plugins/bluez5/a2dp-sink.c
@@ -944,6 +944,19 @@ impl_node_port_enum_params(void *object, int seq,
 		}
 		break;
 
+	case SPA_PARAM_IO:
+		switch (result.index) {
+		case 0:
+			param = spa_pod_builder_add_object(&b,
+				SPA_TYPE_OBJECT_ParamIO, id,
+				SPA_PARAM_IO_id,   SPA_POD_Id(SPA_IO_Buffers),
+				SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers)));
+			break;
+		default:
+			return 0;
+		}
+		break;
+
 	default:
 		return -ENOENT;
 	}