diff --git a/autogen/main.tf.tmpl b/autogen/main.tf.tmpl
index d1b15f9c..1250f4b9 100644
--- a/autogen/main.tf.tmpl
+++ b/autogen/main.tf.tmpl
@@ -120,7 +120,7 @@ resource "google_compute_target_https_proxy" "default" {
   url_map = local.url_map
 
   ssl_certificates            = compact(concat(var.ssl_certificates, google_compute_ssl_certificate.default[*].self_link, google_compute_managed_ssl_certificate.default[*].self_link, ), )
-  certificate_map             = var.certificate_map != null ? "//certificatemanager.googleapis.com/${var.certificate_map}" : null
+  certificate_map             = var.certificate_map != null ? "https://certificatemanager.googleapis.com/${var.certificate_map}" : null
   ssl_policy                  = var.ssl_policy
   quic_override               = var.quic == null ? "NONE" : var.quic ? "ENABLE" : "DISABLE"
   server_tls_policy           = var.server_tls_policy
diff --git a/main.tf b/main.tf
index 9721c9a3..8a27842d 100644
--- a/main.tf
+++ b/main.tf
@@ -118,7 +118,7 @@ resource "google_compute_target_https_proxy" "default" {
   url_map = local.url_map
 
   ssl_certificates            = compact(concat(var.ssl_certificates, google_compute_ssl_certificate.default[*].self_link, google_compute_managed_ssl_certificate.default[*].self_link, ), )
-  certificate_map             = var.certificate_map != null ? "//certificatemanager.googleapis.com/${var.certificate_map}" : null
+  certificate_map             = var.certificate_map != null ? "https://certificatemanager.googleapis.com/${var.certificate_map}" : null
   ssl_policy                  = var.ssl_policy
   quic_override               = var.quic == null ? "NONE" : var.quic ? "ENABLE" : "DISABLE"
   server_tls_policy           = var.server_tls_policy
diff --git a/modules/dynamic_backends/main.tf b/modules/dynamic_backends/main.tf
index b0b4aacc..5908750a 100644
--- a/modules/dynamic_backends/main.tf
+++ b/modules/dynamic_backends/main.tf
@@ -118,7 +118,7 @@ resource "google_compute_target_https_proxy" "default" {
   url_map = local.url_map
 
   ssl_certificates            = compact(concat(var.ssl_certificates, google_compute_ssl_certificate.default[*].self_link, google_compute_managed_ssl_certificate.default[*].self_link, ), )
-  certificate_map             = var.certificate_map != null ? "//certificatemanager.googleapis.com/${var.certificate_map}" : null
+  certificate_map             = var.certificate_map != null ? "https://certificatemanager.googleapis.com/${var.certificate_map}" : null
   ssl_policy                  = var.ssl_policy
   quic_override               = var.quic == null ? "NONE" : var.quic ? "ENABLE" : "DISABLE"
   server_tls_policy           = var.server_tls_policy
diff --git a/modules/frontend/main.tf b/modules/frontend/main.tf
index de2983b7..3229c531 100644
--- a/modules/frontend/main.tf
+++ b/modules/frontend/main.tf
@@ -199,7 +199,7 @@ resource "google_compute_target_https_proxy" "default" {
   url_map = local.url_map
 
   ssl_certificates            = compact(concat(var.ssl_certificates, google_compute_ssl_certificate.default[*].self_link, google_compute_managed_ssl_certificate.default[*].self_link, ), )
-  certificate_map             = var.certificate_map != null ? "//certificatemanager.googleapis.com/${var.certificate_map}" : null
+  certificate_map             = var.certificate_map != null ? "https://certificatemanager.googleapis.com/${var.certificate_map}" : null
   ssl_policy                  = var.ssl_policy
   quic_override               = var.quic == null ? "NONE" : var.quic ? "ENABLE" : "DISABLE"
   server_tls_policy           = var.server_tls_policy
diff --git a/modules/serverless_negs/main.tf b/modules/serverless_negs/main.tf
index 306de60f..fa0ae960 100644
--- a/modules/serverless_negs/main.tf
+++ b/modules/serverless_negs/main.tf
@@ -117,7 +117,7 @@ resource "google_compute_target_https_proxy" "default" {
   url_map = local.url_map
 
   ssl_certificates            = compact(concat(var.ssl_certificates, google_compute_ssl_certificate.default[*].self_link, google_compute_managed_ssl_certificate.default[*].self_link, ), )
-  certificate_map             = var.certificate_map != null ? "//certificatemanager.googleapis.com/${var.certificate_map}" : null
+  certificate_map             = var.certificate_map != null ? "https://certificatemanager.googleapis.com/${var.certificate_map}" : null
   ssl_policy                  = var.ssl_policy
   quic_override               = var.quic == null ? "NONE" : var.quic ? "ENABLE" : "DISABLE"
   server_tls_policy           = var.server_tls_policy