diff --git a/ibm_catalog.json b/ibm_catalog.json
index 5fc00791..96a12ad3 100644
--- a/ibm_catalog.json
+++ b/ibm_catalog.json
@@ -263,11 +263,11 @@
                   ]
                 },
                 {
-                  "key": "existing_kms_key_crn",
-                  "required": true
+                  "key": "existing_kms_key_crn"
                 },
                 {
-                  "key": "existing_kms_instance_crn"
+                  "key": "existing_kms_instance_crn",
+                  "required": true
                 },
                 {
                   "key": "elasticsearch_key_ring_name"
diff --git a/solutions/standard/variables.tf b/solutions/standard/variables.tf
index b378fcbb..d4a73147 100644
--- a/solutions/standard/variables.tf
+++ b/solutions/standard/variables.tf
@@ -208,7 +208,7 @@ variable "auto_scaling" {
 
 variable "existing_kms_key_crn" {
   type        = string
-  description = "The CRN of a Hyper Protect Crypto Services or Key Protect root key to use for disk encryption. If not specified, a root key is created in the KMS instance."
+  description = "The CRN of a Hyper Protect Crypto Services or Key Protect root key to use for disk encryption. If not specified, a root key is created in the KMS instance specified in the `existing_kms_instance_crn` input."
   default     = null
 }
 
@@ -230,7 +230,7 @@ variable "kms_endpoint_type" {
 
 variable "existing_kms_instance_crn" {
   type        = string
-  description = "The CRN of a Hyper Protect Crypto Services or Key Protect instance in the same account as the Databases for Elasticsearch instance. This value is used to create an authorization policy if `skip_iam_authorization_policy` is false. If not specified, a root key is created."
+  description = "The CRN of a Hyper Protect Crypto Services or Key Protect instance. Required to create a new root key if no value is passed with the `existing_kms_key_crn` input. Also required to create an authorization policy if `skip_iam_authorization_policy` is false."
   default     = null
 }