diff --git a/main.tf b/main.tf
index 2bb2fe4..b0afe9f 100644
--- a/main.tf
+++ b/main.tf
@@ -185,5 +185,6 @@ resource "kubernetes_config_map" "drone_server" {
     DRONE_WEBHOOK_EVENTS      = var.drone_webhook_events
     DRONE_WEBHOOK_SECRET      = var.drone_webhook_secret
     DRONE_WEBHOOK_SKIP_VERIFY = var.drone_webhook_skip_verify
+    DRONE_JSONNET_ENABLED     = var.drone_jsonnet_enabled
   }
 }
diff --git a/variables.tf b/variables.tf
index 62cdadc..4bc6773 100644
--- a/variables.tf
+++ b/variables.tf
@@ -170,6 +170,12 @@ variable "drone_s3_region" {
   default     = "us-east-1"
 }
 
+variable "drone_jsonnet_enabled" {
+  description = "Drone JSONNet enabled"
+  type        = bool
+  default     = true
+}
+
 variable "image_pull_policy" {
   description = "Image pull policy for Drone server image"
   type        = string