diff --git a/autoscaling.tf b/autoscaling.tf
index b82c231..9f01691 100644
--- a/autoscaling.tf
+++ b/autoscaling.tf
@@ -49,7 +49,7 @@ resource "aws_appautoscaling_policy" "scale_policy_high" {
     metric_aggregation_type = "Average"
 
     step_adjustment {
-      metric_interval_upper_bound = 0
+      metric_interval_lower_bound = 0
       scaling_adjustment          = 1
     }
   }