diff --git a/spa/plugins/v4l2/v4l2-device.c b/spa/plugins/v4l2/v4l2-device.c
index 9cf003626..572d9512d 100644
--- a/spa/plugins/v4l2/v4l2-device.c
+++ b/spa/plugins/v4l2/v4l2-device.c
@@ -29,6 +29,7 @@ static const char default_device[] = "/dev/video0";
 
 struct props {
 	char device[64];
+	char devnum[32];
 	char product_id[6];
 	char vendor_id[6];
 	int device_fd;
@@ -55,11 +56,11 @@ struct impl {
 static int emit_info(struct impl *this, bool full)
 {
 	int res;
-	struct spa_dict_item items[12];
+	struct spa_dict_item items[13];
 	uint32_t n_items = 0;
 	struct spa_device_info info;
 	struct spa_param_info params[2];
-        char path[128], version[16], capabilities[16], device_caps[16];
+	char path[128], version[16], capabilities[16], device_caps[16];
 
 	if ((res = spa_v4l2_open(&this->dev, this->props.device)) < 0)
 		return res;
@@ -78,6 +79,7 @@ static int emit_info(struct impl *this, bool full)
 	if (this->props.vendor_id[0])
 		ADD_ITEM(SPA_KEY_DEVICE_VENDOR_ID, this->props.vendor_id);
 	ADD_ITEM(SPA_KEY_API_V4L2_PATH, (char *)this->props.device);
+	ADD_ITEM(SPA_KEY_DEVICE_DEVIDS, (char *)this->props.devnum);
 	ADD_ITEM(SPA_KEY_API_V4L2_CAP_DRIVER, (char *)this->dev.cap.driver);
 	ADD_ITEM(SPA_KEY_API_V4L2_CAP_CARD, (char *)this->dev.cap.card);
 	ADD_ITEM(SPA_KEY_API_V4L2_CAP_BUS_INFO, (char *)this->dev.cap.bus_info);
@@ -233,6 +235,8 @@ impl_init(const struct spa_handle_factory *factory,
 
 	if (info && (str = spa_dict_lookup(info, SPA_KEY_API_V4L2_PATH)))
 		strncpy(this->props.device, str, 63);
+	if (info && (str = spa_dict_lookup(info, SPA_KEY_DEVICE_DEVIDS)))
+		strncpy(this->props.devnum, str, 31);
 	if (info && (str = spa_dict_lookup(info, SPA_KEY_DEVICE_PRODUCT_ID)))
 		strncpy(this->props.product_id, str, 5);
 	if (info && (str = spa_dict_lookup(info, SPA_KEY_DEVICE_VENDOR_ID)))
diff --git a/spa/plugins/v4l2/v4l2-udev.c b/spa/plugins/v4l2/v4l2-udev.c
index a328bd8da..3c2504dcb 100644
--- a/spa/plugins/v4l2/v4l2-udev.c
+++ b/spa/plugins/v4l2/v4l2-udev.c
@@ -220,8 +220,9 @@ static int emit_object_info(struct impl *this, struct device *device)
 	uint32_t id = device->id;
 	struct udev_device *dev = device->dev;
 	const char *str;
-	struct spa_dict_item items[20];
+	struct spa_dict_item items[21];
 	uint32_t n_items = 0;
+	char devnum[32];
 
 	info = SPA_DEVICE_OBJECT_INFO_INIT();
 
@@ -236,6 +237,8 @@ static int emit_object_info(struct impl *this, struct device *device)
 	items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Video/Device");
 
 	items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_V4L2_PATH, udev_device_get_devnode(dev));
+	snprintf(devnum, sizeof(devnum), "%" PRId64, (int64_t)udev_device_get_devnum(dev));
+	items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_DEVIDS, devnum);
 
 	if ((str = udev_device_get_property_value(dev, "USEC_INITIALIZED")) && *str)
 		items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_PLUGGED_USEC, str);