diff --git a/github/resource_github_team_repository.go b/github/resource_github_team_repository.go
index 542c3c5b3c..72126884f9 100644
--- a/github/resource_github_team_repository.go
+++ b/github/resource_github_team_repository.go
@@ -33,10 +33,9 @@ func resourceGithubTeamRepository() *schema.Resource {
 				ForceNew: true,
 			},
 			"permission": {
-				Type:         schema.TypeString,
-				Optional:     true,
-				Default:      "pull",
-				ValidateFunc: validateValueFunc([]string{"pull", "triage", "push", "maintain", "admin"}),
+				Type:     schema.TypeString,
+				Optional: true,
+				Default:  "pull",
 			},
 			"etag": {
 				Type:     schema.TypeString,
diff --git a/website/docs/r/team_repository.html.markdown b/website/docs/r/team_repository.html.markdown
index e35ebab343..b9af9ac8a5 100644
--- a/website/docs/r/team_repository.html.markdown
+++ b/website/docs/r/team_repository.html.markdown
@@ -44,7 +44,7 @@ The following arguments are supported:
 * `team_id` - (Required) The GitHub team id or the GitHub team slug
 * `repository` - (Required) The repository to add to the team.
 * `permission` - (Optional) The permissions of team members regarding the repository.
-  Must be one of `pull`, `triage`, `push`, `maintain`, or `admin`. Defaults to `pull`.
+  Must be one of `pull`, `triage`, `push`, `maintain`, `admin` or the name of an existing [custom repository role](https://docs.github.com/en/enterprise-cloud@latest/organizations/managing-peoples-access-to-your-organization-with-roles/managing-custom-repository-roles-for-an-organization) within the organisation. Defaults to `pull`.
 
 
 ## Import