diff --git a/opdracht-3/main.tf b/opdracht-3/main.tf
index f03df82..2dc850a 100644
--- a/opdracht-3/main.tf
+++ b/opdracht-3/main.tf
@@ -39,8 +39,8 @@ resource "azurerm_network_security_group" "main" {
   }
 }
 
-resource "azurerm_network_interface_security_group_association" "databaseserver-1" {
-  network_interface_id      = azurerm_network_interface.databaseserver-1.id
+resource "azurerm_subnet_network_security_group_association" "databaseserver-1" {
+  subnet_id                 = azurerm_subnet.main.id
   network_security_group_id = azurerm_network_security_group.main.id
 }