diff --git a/metrics_sdk/lib/opentelemetry/sdk/metrics/instrument/gauge.rb b/metrics_sdk/lib/opentelemetry/sdk/metrics/instrument/gauge.rb
index cedb6fc98..1c0e8f266 100644
--- a/metrics_sdk/lib/opentelemetry/sdk/metrics/instrument/gauge.rb
+++ b/metrics_sdk/lib/opentelemetry/sdk/metrics/instrument/gauge.rb
@@ -37,7 +37,6 @@ def record(value, attributes: {})
 
           private
 
-          # TODO: replace the default aggregation to LastValue
           def default_aggregation
             OpenTelemetry::SDK::Metrics::Aggregation::LastValue.new
           end