diff --git a/docs/Aggregation/Sum.md b/docs/Aggregation/Sum.md
index bc5929ac093dfd2f287d0d1f7e34f84a641f335a..a11be599719fd1ee0126bae00d40ead6f2baa31d 100644
--- a/docs/Aggregation/Sum.md
+++ b/docs/Aggregation/Sum.md
@@ -9,7 +9,7 @@ A single-value metrics aggregation that sums up numeric values that are extracte
 ```JSON
 {
     "aggregations" : {
-        "agg_intraday_return" : { "sum" : { "field" : "change" } }
+        "intraday_return" : { "sum" : { "field" : "change" } }
     }
 }
 ```