diff --git a/modules/azure/function_app_windows/main.tf b/modules/azure/function_app_windows/main.tf
index 8036b7ab..b6111873 100644
--- a/modules/azure/function_app_windows/main.tf
+++ b/modules/azure/function_app_windows/main.tf
@@ -32,6 +32,7 @@ resource "azurerm_windows_function_app" "function_app" {
     always_on              = var.always_on
     vnet_route_all_enabled = var.route_all_outbound_traffic
     use_32_bit_worker      = var.use_32_bit_worker
+    app_scale_limit        = var.app_scale_limit
 
     dynamic "application_stack" {
       for_each = var.dotnet_version != "" ? [1] : []
diff --git a/modules/azure/function_app_windows/variables.tf b/modules/azure/function_app_windows/variables.tf
index 749b9b7e..2d3c0221 100644
--- a/modules/azure/function_app_windows/variables.tf
+++ b/modules/azure/function_app_windows/variables.tf
@@ -111,3 +111,9 @@ variable "use_32_bit_worker" {
   description = "Should the Windows Function App use a 32-bit worker process."
   default     = true
 }
+
+variable "app_scale_limit" {
+  type        = number
+  description = "Number of workers this function app can scale out to. Only applicable to apps on the Consumption and Premium plan."
+  default     = 0
+}