diff --git a/main.tf b/main.tf
index 55f008d..e8f809a 100644
--- a/main.tf
+++ b/main.tf
@@ -371,6 +371,9 @@ resource "aws_vpn_connection" "tunnel_preshared" {
   tunnel1_phase1_lifetime_seconds = var.tunnel1_phase1_lifetime_seconds
   tunnel2_phase1_lifetime_seconds = var.tunnel2_phase1_lifetime_seconds
 
+  tunnel1_dpd_timeout_seconds = var.tunnel1_dpd_timeout_seconds
+  tunnel2_dpd_timeout_seconds = var.tunnel2_dpd_timeout_seconds
+
   tunnel1_dpd_timeout_action = var.tunnel1_dpd_timeout_action
   tunnel2_dpd_timeout_action = var.tunnel2_dpd_timeout_action