diff --git a/src/aggregator/aggregation/counter.go b/src/aggregator/aggregation/counter.go
index cf0b338165..58d1a373e8 100644
--- a/src/aggregator/aggregation/counter.go
+++ b/src/aggregator/aggregation/counter.go
@@ -136,6 +136,4 @@ func (c *Counter) Annotation() []byte {
 }
 
 // Close closes the counter.
-func (c *Counter) Close() {
-	c.annotation = nil
-}
+func (c *Counter) Close() {}
diff --git a/src/aggregator/aggregation/gauge.go b/src/aggregator/aggregation/gauge.go
index a2c459b6b7..0f17259185 100644
--- a/src/aggregator/aggregation/gauge.go
+++ b/src/aggregator/aggregation/gauge.go
@@ -170,6 +170,4 @@ func (g *Gauge) Annotation() []byte {
 }
 
 // Close closes the gauge.
-func (g *Gauge) Close() {
-	g.annotation = nil
-}
+func (g *Gauge) Close() {}
diff --git a/src/aggregator/aggregation/timer.go b/src/aggregator/aggregation/timer.go
index 031645aced..edbb5860e2 100644
--- a/src/aggregator/aggregation/timer.go
+++ b/src/aggregator/aggregation/timer.go
@@ -159,6 +159,5 @@ func (t *Timer) Annotation() []byte {
 
 // Close closes the timer.
 func (t *Timer) Close() {
-	t.annotation = nil
 	t.stream.Close()
 }