diff --git a/modules/datadog_agent/main.tf b/modules/datadog_agent/main.tf
index 30c6be84..43934418 100644
--- a/modules/datadog_agent/main.tf
+++ b/modules/datadog_agent/main.tf
@@ -12,8 +12,8 @@ locals {
     name              = var.name
     image             = "${var.docker_image_name}:${var.docker_image_tag}",
     cpu               = var.container_cpu_units,
-    memoryReservation = var.essential,
-    essential         = false,
+    memoryReservation = var.container_memory_reservation,
+    essential         = var.essential,
 
     dockerLabels = var.docker_labels