diff --git a/libwvdrmengine/cdm/core/include/cdm_engine.h b/libwvdrmengine/cdm/core/include/cdm_engine.h
index 23732c3a..05ed5bd0 100644
--- a/libwvdrmengine/cdm/core/include/cdm_engine.h
+++ b/libwvdrmengine/cdm/core/include/cdm_engine.h
@@ -325,8 +325,7 @@ class CdmEngine {
   // data. Returns true if the metrics data is populated, false otherwise.
   // |engine_metrics| is owned by the caller and must not be null.
   // The CdmEngine implementation is a placeholder. Just return false.
-  virtual bool GetMetricsSnapshot(
-      __attribute__((unused)) drm_metrics::WvCdmMetrics *metrics) {
+  virtual bool GetMetricsSnapshot(drm_metrics::WvCdmMetrics* /* metrics */) {
     return false;
   }