diff --git a/monitoring/v3/src/main/java/CreateCustomMetric.java b/monitoring/v3/src/main/java/CreateCustomMetric.java
index 76225bec520..5b0def17b8f 100644
--- a/monitoring/v3/src/main/java/CreateCustomMetric.java
+++ b/monitoring/v3/src/main/java/CreateCustomMetric.java
@@ -229,6 +229,7 @@ public MetricDescriptor getCustomMetric() throws IOException {
    *
    * @throws IOException On network error.
    */
+  // [START write_timeseries]
   void writeCustomMetricTimeseriesValue() throws IOException {
     Map<String, String> metricLabel = ImmutableMap.of(
         "environment", "STAGING"
@@ -264,6 +265,7 @@ void writeCustomMetricTimeseriesValue() throws IOException {
     timeSeriesRequest.setTimeSeries(Lists.<TimeSeries>newArrayList(timeSeries));
     monitoringService.projects().timeSeries().create(projectResource, timeSeriesRequest).execute();
   }
+  // [END write_timeseries]
 
   /**
    * Read the TimeSeries value for the custom metrics created within a window of the