diff --git a/storage/onpremise/mongodb/main.tf b/storage/onpremise/mongodb/main.tf
index 1b1373965..7e0a7723b 100644
--- a/storage/onpremise/mongodb/main.tf
+++ b/storage/onpremise/mongodb/main.tf
@@ -37,6 +37,7 @@ resource "helm_release" "mongodb" {
       "tls" = {
         "enabled"       = "true"
         "autoGenerated" = "true"
+        "extraDnsNames" = [local.mongodb_dns]
         "securityContext" = {
           "runAsUser"           = var.security_context.run_as_user
           "runAsGroup"          = var.security_context.fs_group