diff --git a/src/cloudwatch/modules/client/querystringbuilder.py b/src/cloudwatch/modules/client/querystringbuilder.py
index 13d9472..0a25f31 100644
--- a/src/cloudwatch/modules/client/querystringbuilder.py
+++ b/src/cloudwatch/modules/client/querystringbuilder.py
@@ -15,6 +15,7 @@ class QuerystringBuilder(object):
     _METRIC_NAME_KEY = "MetricName"
     _NAME_KEY = "Name"
     _VALUE_KEY = "Value"
+    _UNIT_KEY = "Unit"
     _TIMESTAMP_KEY = "Timestamp"
     _STATISTICS_KEY = "StatisticValues."
     _STAT_MAX = _STATISTICS_KEY + "Maximum"
@@ -60,6 +61,7 @@ def _build_metric_map(self, metric_list):
                 metric_map[metric_prefix + self._STORAGE_RESOLUTION] = "1"
             self._add_dimensions(metric, metric_map, metric_prefix)
             self._add_values(metric, metric_map, metric_prefix)
+            self._add_unit(metric, metric_map, metric_prefix)
             metric_index += 1
         return metric_map
     
@@ -80,3 +82,6 @@ def _add_values(self, metric, metric_map, metric_prefix):
         metric_map[metric_prefix + self._STAT_MIN] = metric.statistics.min
         metric_map[metric_prefix + self._STAT_SUM] = metric.statistics.sum
         metric_map[metric_prefix + self._STAT_SAMPLE] = metric.statistics.sample_count
+
+    def _add_unit(self, metric, metric_map, metric_prefix):
+        metric_map[metric_prefix + self._UNIT_KEY] = metric.unit        
diff --git a/src/cloudwatch/modules/metricdata.py b/src/cloudwatch/modules/metricdata.py
index 1669e66..cc4880e 100644
--- a/src/cloudwatch/modules/metricdata.py
+++ b/src/cloudwatch/modules/metricdata.py
@@ -86,7 +86,7 @@ def __init__(self, config_helper, vl, adjusted_time=None):
 
     def build(self):
         """ Builds metric data object with name and dimensions but without value or statistics """
-        metric_array = [MetricDataStatistic(metric_name=self._build_metric_name(), dimensions=self._build_metric_dimensions(), timestamp=self._build_timestamp())]
+        metric_array = [MetricDataStatistic(metric_name=self._build_metric_name(), unit=self.vl.type_instance, dimensions=self._build_metric_dimensions(), timestamp=self._build_timestamp())]
         if self.config.push_asg:
             metric_array.append(MetricDataStatistic(metric_name=self._build_metric_name(), dimensions=self._build_asg_dimension(), timestamp=self._build_timestamp()))
         if self.config.push_constant: