diff --git a/ibm_catalog.json b/ibm_catalog.json
index 0b7099d4..6849b016 100644
--- a/ibm_catalog.json
+++ b/ibm_catalog.json
@@ -254,7 +254,8 @@
               "key": "ibmcloud_kms_api_key"
             },
             {
-              "key": "existing_kms_instance_crn"
+              "key": "existing_kms_instance_crn",
+              "required": true
             },
             {
               "key": "existing_kms_key_crn"