diff --git a/units/duration.go b/units/duration.go
index a31f780..44012aa 100644
--- a/units/duration.go
+++ b/units/duration.go
@@ -26,7 +26,6 @@ func HumanDuration(d time.Duration) string {
 		return fmt.Sprintf("%d weeks", hours/24/7)
 	} else if hours < 24*365*2 {
 		return fmt.Sprintf("%d months", hours/24/30)
-	} else {
-		return fmt.Sprintf("%d years", hours/24/365)
 	}
+	return fmt.Sprintf("%d years", int(d.Hours())/24/365)
 }