diff --git a/.octopus/deployment_process.ocl b/.octopus/deployment_process.ocl
index 4b9fd86..a24bd10 100644
--- a/.octopus/deployment_process.ocl
+++ b/.octopus/deployment_process.ocl
@@ -12,6 +12,7 @@ step "plan-to-apply-a-terraform-template" {
             Octopus.Action.Package.PackageId = "#{TF_PACKAGE}"
             Octopus.Action.RunOnServer = "true"
             Octopus.Action.Script.ScriptSource = "Package"
+            Octopus.Action.Terraform.AdditionalActionParams = "-var-file=variables.tfvar"
             Octopus.Action.Terraform.AdditionalInitParams = "#{TF_INIT}"
             Octopus.Action.Terraform.AllowPluginDownloads = "True"
             Octopus.Action.Terraform.AzureAccount = "False"