diff --git a/metrics/timer.go b/metrics/timer.go
index 52aa5ae..e12d9cd 100644
--- a/metrics/timer.go
+++ b/metrics/timer.go
@@ -29,7 +29,8 @@
 	t.h.Observe(d)
 }
 
-// Unit sets the timer time unit
+// Unit sets the unit of the float64 emitted by the timer.
+// By default, the timer emits seconds.
 func (t *Timer) Unit(u time.Duration) {
 	t.u = u
 }
diff --git a/metrics/timer_test.go b/metrics/timer_test.go
index 1e08408..2743e99 100644
--- a/metrics/timer_test.go
+++ b/metrics/timer_test.go
@@ -33,7 +33,6 @@
 }
 
 func TestTimerUnit(t *testing.T) {
-
 	for _, tc := range []struct {
 		name      string
 		unit      time.Duration