diff --git a/main.tf b/main.tf
index 25346b30bd..653696428c 100644
--- a/main.tf
+++ b/main.tf
@@ -240,7 +240,7 @@ module "runners" {
   lambda_runtime                   = var.lambda_runtime
   lambda_architecture              = var.lambda_architecture
   lambda_zip                       = var.runners_lambda_zip
-  lambda_scale_up_memory_size      = coalesce(var.runners_scale_up_Lambda_memory_size, var.runners_scale_up_lambda_memory_size)
+  lambda_scale_up_memory_size      = var.runners_scale_up_lambda_memory_size
   lambda_scale_down_memory_size    = var.runners_scale_down_lambda_memory_size
   lambda_timeout_scale_up          = var.runners_scale_up_lambda_timeout
   lambda_timeout_scale_down        = var.runners_scale_down_lambda_timeout
diff --git a/variables.deprecated.tf b/variables.deprecated.tf
index c26c614510..115d190314 100644
--- a/variables.deprecated.tf
+++ b/variables.deprecated.tf
@@ -21,14 +21,6 @@ variable "enable_event_rule_binaries_syncer" {
   }
 }
 
-
-# tflint-ignore: terraform_naming_convention
-variable "runners_scale_up_Lambda_memory_size" {
-  description = "Memory size limit in MB for scale-up lambda."
-  type        = number
-  default     = null
-}
-
 # tflint-ignore: terraform_unused_declarations
 variable "enable_metrics_control_plane" {
   description = "(Experimental) Enable or disable the metrics for the module. Feature can change or renamed without a major release."