diff --git a/README.md b/README.md
index 58fe43b..21b4c79 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ See [variables.tf] and [examples/] for details and use-cases.
 | <a name="input_archive_on_destroy"></a> [archive\_on\_destroy](#input\_archive\_on\_destroy) | (Optional) Set to `false` to not archive the repository instead of deleting on destroy. | `string` | `true` | no |
 | <a name="input_archived"></a> [archived](#input\_archived) | (Optional) Specifies if the repository should be archived. (Default: false) | `bool` | `false` | no |
 | <a name="input_auto_init"></a> [auto\_init](#input\_auto\_init) | (Optional) Wether or not to produce an initial commit in the repository. (Default: true) | `bool` | `null` | no |
-| <a name="input_autolink_references"></a> [autolink\_references](#input\_autolink\_references) | (Optional) Configuring autolink references. For details please check: https://registry.terraform.io/providers/integrations/github/latest/docs/resources/repository_autolink_reference | <pre>list(object({<br/>    key_prefix          = string<br/>    target_url_template = string<br/>  }))</pre> | `[]` | no |
+| <a name="input_autolink_references"></a> [autolink\_references](#input\_autolink\_references) | (Optional) Configuring autolink references. For details please check: https://registry.terraform.io/providers/integrations/github/latest/docs/resources/repository_autolink_reference | <pre>list(object({<br/>    key_prefix          = string<br/>    target_url_template = string<br/>    is_alphanumeric     = optional(bool)<br/>  }))</pre> | `[]` | no |
 | <a name="input_branch_protections_v3"></a> [branch\_protections\_v3](#input\_branch\_protections\_v3) | (Optional) A list of branch protections to apply to the repository. Default is [] unless branch\_protections is set. | `any` | `[]` | no |
 | <a name="input_branch_protections_v4"></a> [branch\_protections\_v4](#input\_branch\_protections\_v4) | (Optional) A list of v4 branch protections to apply to the repository. Default is []. | `any` | `[]` | no |
 | <a name="input_branches"></a> [branches](#input\_branches) | (Optional) A list of branches to be created in this repository. | `any` | `[]` | no |
diff --git a/main.tf b/main.tf
index ceb3dbf..dacb337 100644
--- a/main.tf
+++ b/main.tf
@@ -613,6 +613,7 @@ resource "github_repository_autolink_reference" "repository_autolink_reference"
   repository          = github_repository.repository.name
   key_prefix          = each.value.key_prefix
   target_url_template = each.value.target_url_template
+  is_alphanumeric     = each.value.is_alphanumeric
 }
 
 # ---------------------------------------------------------------------------------------------------------------------
diff --git a/variables.tf b/variables.tf
index e234490..fca1d44 100644
--- a/variables.tf
+++ b/variables.tf
@@ -532,6 +532,7 @@ variable "autolink_references" {
   type = list(object({
     key_prefix          = string
     target_url_template = string
+    is_alphanumeric     = optional(bool)
   }))
 
   # Example:
@@ -539,6 +540,7 @@ variable "autolink_references" {
   #   {
   #     key_prefix          = "TICKET-"
   #     target_url_template = "https://hello.there/TICKET?query=<num>"
+  #     is_alphanumeric     = true
   #   }
   # ]