diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index a58e84f1a63b..918e8e0b72ff 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -153,6 +153,7 @@ void read_persistent_clock(struct timespec *ts)
 		year += 100;
 
 	ts->tv_sec = mktime(year, mon, day, hour, min, sec);
+	ts->tv_nsec = 0;
 }