diff --git a/tests/gadget-zero/usb-gadget0.c b/tests/gadget-zero/usb-gadget0.c
index 4e7b7adf..ac49d0fb 100644
--- a/tests/gadget-zero/usb-gadget0.c
+++ b/tests/gadget-zero/usb-gadget0.c
@@ -234,8 +234,7 @@ static int gadget0_control_request(usbd_device *usbd_dev,
 	struct usb_setup_data *req,
 	uint8_t **buf,
 	uint16_t *len,
-	void (**complete)(usbd_device *usbd_dev,
-	struct usb_setup_data *req))
+	usbd_control_complete_callback *complete)
 {
 	(void) usbd_dev;
 	(void) complete;