diff --git a/source/code/plugin/CAdvisorMetricsAPIClient.rb b/source/code/plugin/CAdvisorMetricsAPIClient.rb
index 8b4fd9fcf..35cf727cf 100644
--- a/source/code/plugin/CAdvisorMetricsAPIClient.rb
+++ b/source/code/plugin/CAdvisorMetricsAPIClient.rb
@@ -318,6 +318,7 @@ def getContainerCpuMetricItemRate(metricJSON, hostName, cpuMetricNameToCollect,
             telemetryProperties = {}
             telemetryProperties["Computer"] = hostName
             telemetryProperties["ContainerCount"] = containerCount
+            telemetryProperties["OS"] = "Windows"
             # Hardcoding the event to ContainerInventory hearbeat event since the telemetry is pivoted off of this event.
             @Log.info "sending container inventory heartbeat telemetry"
             ApplicationInsightsUtility.sendCustomEvent("ContainerInventoryHeartBeatEvent", telemetryProperties)