diff --git a/model/internal/otlp_wrapper.go b/model/internal/otlp_wrapper.go
index 426f9e5aee6..c3c14846975 100644
--- a/model/internal/otlp_wrapper.go
+++ b/model/internal/otlp_wrapper.go
@@ -42,7 +42,7 @@ func MetricsFromOtlp(req *otlpcollectormetrics.ExportMetricsServiceRequest) Metr
 // MetricsCompatibilityChanges performs backward compatibility conversion on Metrics:
 // - Convert IntHistogram to Histogram. See https://github.com/open-telemetry/opentelemetry-proto/blob/f3b0ee0861d304f8f3126686ba9b01c106069cb0/opentelemetry/proto/metrics/v1/metrics.proto#L170
 // - Convert IntGauge to Gauge. See https://github.com/open-telemetry/opentelemetry-proto/blob/f3b0ee0861d304f8f3126686ba9b01c106069cb0/opentelemetry/proto/metrics/v1/metrics.proto#L156
-//
+// - Convert IntSum to Sum. See https://github.com/open-telemetry/opentelemetry-proto/blob/f3b0ee0861d304f8f3126686ba9b01c106069cb0/opentelemetry/proto/metrics/v1/metrics.proto#L156
 func MetricsCompatibilityChanges(req *otlpcollectormetrics.ExportMetricsServiceRequest) {
 	for _, rsm := range req.ResourceMetrics {
 		for _, ilm := range rsm.InstrumentationLibraryMetrics {