diff --git a/src/pipewire/type.c b/src/pipewire/type.c
index ab0daa3ad..93e2dd234 100644
--- a/src/pipewire/type.c
+++ b/src/pipewire/type.c
@@ -63,4 +63,5 @@ void pw_type_init(struct pw_type *type)
 	spa_type_monitor_map(type->map, &type->monitor);
 	spa_type_param_buffers_map(type->map, &type->param_buffers);
 	spa_type_param_meta_map(type->map, &type->param_meta);
+	spa_type_param_io_map(type->map, &type->param_io);
 }
diff --git a/src/pipewire/type.h b/src/pipewire/type.h
index caf810a8c..a290ee75e 100644
--- a/src/pipewire/type.h
+++ b/src/pipewire/type.h
@@ -30,6 +30,7 @@ extern "C" {
 #include <spa/monitor/monitor.h>
 #include <spa/param/buffers.h>
 #include <spa/param/meta.h>
+#include <spa/param/io.h>
 #include <spa/node/io.h>
 
 #include <pipewire/map.h>
@@ -74,6 +75,7 @@ struct pw_type {
 	struct spa_type_monitor monitor;
 	struct spa_type_param_buffers param_buffers;
 	struct spa_type_param_meta param_meta;
+	struct spa_type_param_io param_io;
 };
 
 void