diff --git a/indexer/full_node_ap_northeast_1.tf b/indexer/full_node_ap_northeast_1.tf
index 5b39959e..18e32008 100644
--- a/indexer/full_node_ap_northeast_1.tf
+++ b/indexer/full_node_ap_northeast_1.tf
@@ -39,4 +39,6 @@ module "full_node_ap_northeast_1" {
   providers = {
     aws = aws.ap_northeast_1
   }
+
+  root_block_device_size = var.full_node_root_block_device_size
 }
diff --git a/indexer/variables.tf b/indexer/variables.tf
index 07c7d191..7fbfbfca 100644
--- a/indexer/variables.tf
+++ b/indexer/variables.tf
@@ -496,3 +496,9 @@ variable "socks_ecs_desired_count" {
   description = "Number of desired socks instances."
   default     = 5
 }
+
+variable "full_node_root_block_device_size" {
+  type        = number
+  description = "Size of Size of root block device in gigabytes."
+  default     = 4000
+}