diff --git a/system/metrics/sinks/CMakeLists.txt b/system/metrics/sinks/CMakeLists.txt
index a46652b191c..d79f53e0871 100644
--- a/system/metrics/sinks/CMakeLists.txt
+++ b/system/metrics/sinks/CMakeLists.txt
@@ -1,5 +1,5 @@
 ###############################################################################
-#    HPCC SYSTEMS software Copyright (C) 20214HPCC Systems®.
+#    HPCC SYSTEMS software Copyright (C) 2024 HPCC Systems®.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License");
 #    you may not use this file except in compliance with the License.
diff --git a/system/metrics/sinks/elastic/elasticSink.cpp b/system/metrics/sinks/elastic/elasticSink.cpp
index 0c3a4bba890..703f9cf9824 100644
--- a/system/metrics/sinks/elastic/elasticSink.cpp
+++ b/system/metrics/sinks/elastic/elasticSink.cpp
@@ -15,6 +15,8 @@
 #include <cstdio>
 #include "platform.h"
 
+#include "nlohmann/json.hpp"
+
 using namespace hpccMetrics;
 
 extern "C" MetricSink* getSinkInstance(const char *name, const IPropertyTree *pSettingsTree)
@@ -25,8 +27,7 @@ extern "C" MetricSink* getSinkInstance(const char *name, const IPropertyTree *pS
 
 
 ElasticMetricSink::ElasticMetricSink(const char *name, const IPropertyTree *pSettingsTree) :
-    PeriodicMetricSink(name, "file", pSettingsTree),
-    ignoreZeroMetrics(false)
+    PeriodicMetricSink(name, "elastic", pSettingsTree)
 {
     ignoreZeroMetrics = pSettingsTree->getPropBool("@ignoreZeroMetrics", true);
 }
diff --git a/system/metrics/sinks/elastic/elasticSink.hpp b/system/metrics/sinks/elastic/elasticSink.hpp
index 74dec839679..827169f3b13 100644
--- a/system/metrics/sinks/elastic/elasticSink.hpp
+++ b/system/metrics/sinks/elastic/elasticSink.hpp
@@ -33,9 +33,6 @@
 #pragma GCC diagnostic pop
 #endif
 
-#include "nlohmann/json.hpp"
-
-
 #ifdef ELASTICINK_EXPORTS
 #define ELASTICSINK_API DECL_EXPORT
 #else
@@ -49,11 +46,11 @@ class ELASTICSINK_API ElasticMetricSink : public hpccMetrics::PeriodicMetricSink
     ~ElasticMetricSink() override = default;
 
 protected:
-    void prepareToStartCollecting() override;
-    void collectingHasStopped() override;
-    void doCollection() override;
+    virtual void prepareToStartCollecting() override;
+    virtual void collectingHasStopped() override;
+    virtual void doCollection() override;
 
 protected:
     StringBuffer indexName;
-    bool ignoreZeroMetrics;
+    bool ignoreZeroMetrics = false;
 };