diff --git a/terraform/gcp/modules/sigstore/sigstore.tf b/terraform/gcp/modules/sigstore/sigstore.tf
index 3d0b8cbc3..e51ef637b 100644
--- a/terraform/gcp/modules/sigstore/sigstore.tf
+++ b/terraform/gcp/modules/sigstore/sigstore.tf
@@ -174,6 +174,7 @@ module "mysql" {
   database_version  = var.mysql_db_version
   tier              = var.mysql_tier
   availability_type = var.mysql_availability_type
+  collation         = var.mysql_collation
 
   replica_zones = var.mysql_replica_zones
   replica_tier  = var.mysql_replica_tier
@@ -373,6 +374,7 @@ module "ctlog_shards" {
   require_ssl               = var.mysql_require_ssl
   backup_enabled            = var.mysql_backup_enabled
   binary_log_backup_enabled = var.mysql_binary_log_backup_enabled
+  collation                 = var.mysql_collation
 
 
   depends_on = [
@@ -423,6 +425,7 @@ module "standalone_mysqls" {
   require_ssl               = var.mysql_require_ssl
   backup_enabled            = var.mysql_backup_enabled
   binary_log_backup_enabled = var.mysql_binary_log_backup_enabled
+  collation                 = var.mysql_collation
 
 
   depends_on = [
diff --git a/terraform/gcp/modules/sigstore/variables.tf b/terraform/gcp/modules/sigstore/variables.tf
index 4a3170fa5..89bac1f23 100644
--- a/terraform/gcp/modules/sigstore/variables.tf
+++ b/terraform/gcp/modules/sigstore/variables.tf
@@ -239,6 +239,12 @@ variable "mysql_binary_log_backup_enabled" {
   default     = true
 }
 
+variable "mysql_collation" {
+  type        = string
+  description = "collation setting for database"
+  default     = "utf8_general_ci"
+}
+
 variable "fulcio_keyring_name" {
   type        = string
   description = "Name of Fulcio keyring."