diff --git a/twitter-eventlistener-plugin/src/main/java/com/twitter/presto/plugin/eventlistener/QueryStatsHelper.java b/twitter-eventlistener-plugin/src/main/java/com/twitter/presto/plugin/eventlistener/QueryStatsHelper.java
index e57cedda3ff0..82dafc9c8b40 100644
--- a/twitter-eventlistener-plugin/src/main/java/com/twitter/presto/plugin/eventlistener/QueryStatsHelper.java
+++ b/twitter-eventlistener-plugin/src/main/java/com/twitter/presto/plugin/eventlistener/QueryStatsHelper.java
@@ -135,7 +135,7 @@ private static OperatorStats getOperatorStat(JsonObject obj)
             operatorStats.finish_wall_millis = getMillisOrNegativeOne(obj.getString("finishWall"));
             operatorStats.finish_cpu_millis = getMillisOrNegativeOne(obj.getString("finishCpu"));
             operatorStats.finish_user_millis = getMillisOrNegativeOne(obj.getString("finishUser"));
-            operatorStats.memory_reservation_bytes = getBytesOrNegativeOne(obj.getString("memoryReservation"));
+            operatorStats.memory_reservation_bytes = getBytesOrNegativeOne(obj.getString("userMemoryReservation"));
             operatorStats.system_memory_reservation_bytes = getBytesOrNegativeOne(obj.getString("systemMemoryReservation"));
         }
         catch (Exception e) {