diff --git a/src/configuration.ts b/src/configuration.ts
index e233d85..d934688 100644
--- a/src/configuration.ts
+++ b/src/configuration.ts
@@ -31,6 +31,7 @@ export interface Category {
  * Defines the properties of the PullRequestInfo useable in different configurations
  */
 export type Property =
+  | 'number'
   | 'title'
   | 'branch'
   | 'author'