diff --git a/templates/drone-server.env.j2 b/templates/drone-server.env.j2
index 8eb50dc..2b9094d 100644
--- a/templates/drone-server.env.j2
+++ b/templates/drone-server.env.j2
@@ -13,7 +13,9 @@ DRONE_RPC_SECRET={{ drone_rpc_secret }}
 {% if drone_database_secret is defined  and drone_database_secret != "" %}
 DRONE_DATABASE_SECRET={{ drone_database_secret }}
 {% endif %}
+{% if drone_agents_enabled is defined %}
 DRONE_AGENTS_ENABLED=true
+{% endif %}
 {% if drone_logs_pretty is defined %}
 DRONE_LOGS_PRETTY={{ drone_logs_pretty }}
 {% endif %}