diff --git a/lib/ansible/modules/web_infrastructure/ansible_tower/tower_credential.py b/lib/ansible/modules/web_infrastructure/ansible_tower/tower_credential.py
index 3851f5fe7f7..9555538df00 100644
--- a/lib/ansible/modules/web_infrastructure/ansible_tower/tower_credential.py
+++ b/lib/ansible/modules/web_infrastructure/ansible_tower/tower_credential.py
@@ -54,7 +54,7 @@ options:
       description:
         - Type of credential being added.
       required: True
-      choices: ["ssh", "net", "scm", "aws", "rax", "vmware", "satellite6", "cloudforms", "gce", "azure", "azure_rm", "openstack"]
+      choices: ["ssh", "vault", "net", "scm", "aws", "vmware", "satellite6", "cloudforms", "gce", "azure_rm", "openstack", "rhv", "insights", "tower"]
     host:
       description:
         - Host for this credential.