diff --git a/exporters/etw/include/opentelemetry/exporters/etw/etw_logger.h b/exporters/etw/include/opentelemetry/exporters/etw/etw_logger.h
index caa4fe5133..ccf332b599 100644
--- a/exporters/etw/include/opentelemetry/exporters/etw/etw_logger.h
+++ b/exporters/etw/include/opentelemetry/exporters/etw/etw_logger.h
@@ -228,6 +228,8 @@ class Logger : public opentelemetry::logs::Logger
                    opentelemetry::trace::TraceFlags trace_flags,
                    common::SystemTimestamp timestamp) noexcept
   {
+    UNREFERENCED_PARAMETER(trace_flags);
+
 #  if defined(ENABLE_ENV_PROPERTIES)
 
     Properties env_properties_env = {};
diff --git a/exporters/etw/include/opentelemetry/exporters/etw/etw_tail_sampler.h b/exporters/etw/include/opentelemetry/exporters/etw/etw_tail_sampler.h
index c7fa7ec0cf..bd4a9bb90e 100644
--- a/exporters/etw/include/opentelemetry/exporters/etw/etw_tail_sampler.h
+++ b/exporters/etw/include/opentelemetry/exporters/etw/etw_tail_sampler.h
@@ -30,6 +30,7 @@ class AlwaysOnTailSampler : public TailSampler
   opentelemetry::sdk::trace::SamplingResult ShouldSample(
       const opentelemetry::trace::Span &span) noexcept override
   {
+    UNREFERENCED_PARAMETER(span);
     return {opentelemetry::sdk::trace::Decision::RECORD_AND_SAMPLE};
   }
 };