diff --git a/src/modules/module-client-device/client-device.h b/src/modules/module-client-device/client-device.h
index f624cf98c..c15b98e42 100644
--- a/src/modules/module-client-device/client-device.h
+++ b/src/modules/module-client-device/client-device.h
@@ -13,7 +13,7 @@ extern "C" {
 
 #define CLIENT_DEVICE_USAGE	"["PW_KEY_DEVICE_NAME"=<string>]"
 
-struct pw_device *
+struct pw_impl_device *
 pw_client_device_new(struct pw_resource *resource,
 		   struct pw_properties *properties);
 
diff --git a/src/modules/module-client-device/resource-device.c b/src/modules/module-client-device/resource-device.c
index 324401308..ca00bfef9 100644
--- a/src/modules/module-client-device/resource-device.c
+++ b/src/modules/module-client-device/resource-device.c
@@ -17,6 +17,8 @@
 
 #include <pipewire/impl.h>
 
+#include "client-device.h"
+
 struct impl {
 	struct pw_context *context;
 	struct pw_impl_device *device;