diff --git a/README.md b/README.md
index 657d5fe..d6a9170 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Functional examples are included in the
 | decrypters | List of comma-separated owners for each key declared in set\_decrypters\_for. | `list(string)` | `[]` | no |
 | encrypters | List of comma-separated owners for each key declared in set\_encrypters\_for. | `list(string)` | `[]` | no |
 | key\_algorithm | The algorithm to use when creating a version based on this template. See the https://cloud.google.com/kms/docs/reference/rest/v1/CryptoKeyVersionAlgorithm for possible inputs. | `string` | `"GOOGLE_SYMMETRIC_ENCRYPTION"` | no |
-| key\_destroy\_scheduled\_duration | Set The period of time that versions of keys spend in the DESTROY\_SCHEDULED state before transitioning to DESTROYED. | `string` | `"86400"` | no |
+| key\_destroy\_scheduled\_duration | Set The period of time that versions of keys spend in the DESTROY\_SCHEDULED state before transitioning to DESTROYED. | `string` | `"86400s"` | no |
 | key\_protection\_level | The protection level to use when creating a version based on this template. Default value: "SOFTWARE" Possible values: ["SOFTWARE", "HSM"] | `string` | `"SOFTWARE"` | no |
 | key\_rotation\_period | Generate a new key every time this period passes. | `string` | `"100000s"` | no |
 | keyring | Keyring name. | `string` | n/a | yes |
diff --git a/main.tf b/main.tf
index 57f7eb2..f43d964 100644
--- a/main.tf
+++ b/main.tf
@@ -35,7 +35,7 @@ resource "google_kms_crypto_key" "key" {
     prevent_destroy = true
   }
 
-  destroy_scheduled_duration  = var.key_destroy_scheduled_duration
+  destroy_scheduled_duration = var.key_destroy_scheduled_duration
 
   version_template {
     algorithm        = var.key_algorithm
@@ -56,7 +56,7 @@ resource "google_kms_crypto_key" "key_ephemeral" {
     prevent_destroy = false
   }
 
-  destroy_scheduled_duration  = var.key_destroy_scheduled_duration 
+  destroy_scheduled_duration = var.key_destroy_scheduled_duration
 
   version_template {
     algorithm        = var.key_algorithm
diff --git a/variables.tf b/variables.tf
index cfa6d07..7ee9a02 100644
--- a/variables.tf
+++ b/variables.tf
@@ -44,8 +44,8 @@ variable "prevent_destroy" {
 
 variable "key_destroy_scheduled_duration" {
   description = "Set The period of time that versions of keys spend in the DESTROY_SCHEDULED state before transitioning to DESTROYED."
-  type = string
-  default = "86400"
+  type        = string
+  default     = "86400s"
 }
 
 variable "purpose" {