diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 91480137aa3972e396443ceaa5dd2303ca141c35..3eaae47542751962579a3c6736f18917e4da7ad3 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -229,6 +229,11 @@ static inline void get_monotonic_boottime(struct timespec *ts)
 	*ts = ktime_to_timespec(ktime_get_boottime());
 }
 
+static inline void get_monotonic_boottime64(struct timespec64 *ts)
+{
+	*ts = ktime_to_timespec64(ktime_get_boottime());
+}
+
 static inline void timekeeping_clocktai(struct timespec *ts)
 {
 	*ts = ktime_to_timespec(ktime_get_clocktai());