diff --git a/exporters/prometheus/src/collector.cc b/exporters/prometheus/src/collector.cc
index 9082f49f6f..33b9a9b8c8 100644
--- a/exporters/prometheus/src/collector.cc
+++ b/exporters/prometheus/src/collector.cc
@@ -40,10 +40,9 @@ std::vector<prometheus_client::MetricFamily> PrometheusCollector::Collect() cons
 
   std::vector<prometheus_client::MetricFamily> result;
 
-  bool populate_target_info = populate_target_info_;
-  reader_->Collect([&result, populate_target_info](sdk::metrics::ResourceMetrics &metric_data) {
+  reader_->Collect([&result, this](sdk::metrics::ResourceMetrics &metric_data) {
     auto prometheus_metric_data =
-        PrometheusExporterUtils::TranslateToPrometheus(metric_data, populate_target_info);
+        PrometheusExporterUtils::TranslateToPrometheus(metric_data, this->populate_target_info_);
     for (auto &data : prometheus_metric_data)
       result.emplace_back(data);
     return true;
diff --git a/exporters/prometheus/src/exporter_utils.cc b/exporters/prometheus/src/exporter_utils.cc
index 5b834f8176..0ecabc3983 100644
--- a/exporters/prometheus/src/exporter_utils.cc
+++ b/exporters/prometheus/src/exporter_utils.cc
@@ -379,7 +379,7 @@ void PrometheusExporterUtils::SetMetricBasic(
   // Note that attribute keys are sorted, but sanitized keys can be out-of-order.
   // We could sort the sanitized keys again, but this seems too expensive to do
   // in this hot code path. Instead, we ignore out-of-order keys and emit a warning.
-  metric.label.reserve(labels.size() + 2);
+  metric.label.reserve(labels.size());
   std::string previous_key;
   for (auto const &label : labels)
   {