diff --git a/udev.h b/udev.h
index 51ba317..65d3fe4 100644
--- a/udev.h
+++ b/udev.h
@@ -29,6 +29,7 @@ const char *udev_device_get_devpath(struct udev_device *udev_device);
 const char *udev_device_get_devnode(struct udev_device *udev_device);
 dev_t udev_device_get_devnum(struct udev_device *udev_device);
 unsigned long long udev_device_get_seqnum(struct udev_device *udev_device);
+unsigned long long udev_device_get_usec_since_initialized(struct udev_device *udev_device);
 const char *udev_device_get_devtype(struct udev_device *udev_device);
 const char *udev_device_get_subsystem(struct udev_device *udev_device);
 const char *udev_device_get_driver(struct udev_device *udev_device);
diff --git a/udev_device.c b/udev_device.c
index 4d5a4fa..c5aeef7 100644
--- a/udev_device.c
+++ b/udev_device.c
@@ -57,6 +57,11 @@ unsigned long long udev_device_get_seqnum(struct udev_device *udev_device)
     return strtoull(seqnum, NULL, 10);
 }
 
+unsigned long long udev_device_get_usec_since_initialized(struct udev_device *udev_device)
+{
+    return 0;
+}
+
 dev_t udev_device_get_devnum(struct udev_device *udev_device)
 {
     const char *major, *minor;