diff --git a/exporters/prometheus/src/exporter_utils.cc b/exporters/prometheus/src/exporter_utils.cc
index f20ba5ef9e..8a577f689b 100644
--- a/exporters/prometheus/src/exporter_utils.cc
+++ b/exporters/prometheus/src/exporter_utils.cc
@@ -276,7 +276,7 @@ void PrometheusExporterUtils::SetMetricBasic(
   size_t i = 0;
   if (!labels.empty())
   {
-    metric.label.resize(labels.size());
+    metric.label.reserve(labels.size() + 2);
     for (auto const &label : labels)
     {
       auto sanitized          = SanitizeNames(label.first);
@@ -284,17 +284,16 @@ void PrometheusExporterUtils::SetMetricBasic(
       metric.label[i++].value = AttributeValueToString(label.second);
     }
   }
+  if (!scope) return;
   auto scope_name = scope->GetName();
   if (!scope_name.empty())
   {
-    metric.label.resize(i + 1);
     metric.label[i].name    = "otel_scope_name";
     metric.label[i++].value = scope_name;
   }
   auto scope_version = scope->GetVersion();
   if (!scope_version.empty())
   {
-    metric.label.resize(i + 1);
     metric.label[i].name    = "otel_scope_version";
     metric.label[i++].value = scope_version;
   }