diff --git a/src/Network/Datadog/Internal.hs b/src/Network/Datadog/Internal.hs
index 3b6e95e..eff060f 100644
--- a/src/Network/Datadog/Internal.hs
+++ b/src/Network/Datadog/Internal.hs
@@ -263,8 +263,9 @@ instance ToJSON MetricPoints where
   toJSON (Counter ps) = toJSON $ fmap (first Timestamp) ps
 
 instance ToJSON Metric where
-  toJSON m = object ks
+  toJSON m = object (g ks)
     where
+      g = maybe id (\x y -> ("interval" .= x) : y) $ metricInterval m
       f = maybe id (\x y -> ("host" .= x) : y) $ metricHost m
       ks = f [ "metric" .= metricName m
              , "points" .= metricPoints m
diff --git a/src/Network/Datadog/Types.hs b/src/Network/Datadog/Types.hs
index 0353e03..ec17d3a 100644
--- a/src/Network/Datadog/Types.hs
+++ b/src/Network/Datadog/Types.hs
@@ -220,8 +220,9 @@ data Metric = Metric
   , metricPoints :: MetricPoints
   , metricHost   :: Maybe Text
   , metricTags   :: [Text]
+  , metricInterval :: Maybe Integer
   }
- 
+
 -- | Each monitor is of a specific type, which determines what sort of check
 -- the monitor performs.
 data MonitorType = MetricAlert