diff --git a/server_instances_sip.tf b/server_instances_sip.tf
index 2df76f9..1a2127a 100755
--- a/server_instances_sip.tf
+++ b/server_instances_sip.tf
@@ -12,7 +12,7 @@ resource "oci_core_instance" "sip-instance" {
 
   create_vnic_details {
     subnet_id              = var.ocid_subnet_app
-    assign_public_ip       = true
+    assign_public_ip       = false
     nsg_ids                = [ oci_core_network_security_group.sip-servers-nsg.id ]
   }