diff --git a/main.tf b/main.tf
index a11580e..ebf17c8 100644
--- a/main.tf
+++ b/main.tf
@@ -179,7 +179,7 @@ resource "aws_elasticsearch_domain" "default" {
           value = var.auto_tune.duration
           unit  = "HOURS"
         }
-        cron_expression_for_recurrence = var.auto_tune_cron_schedule
+        cron_expression_for_recurrence = var.auto_tune.cron_schedule
       }
     }
   }
@@ -321,4 +321,4 @@ module "kibana_hostname" {
   records = [join("", aws_elasticsearch_domain.default[*].endpoint)]
 
   context = module.this.context
-}
\ No newline at end of file
+}