diff --git a/website/docs/r/app_installation_repository.html.markdown b/website/docs/r/app_installation_repository.html.markdown
index 7c2d926183..39d0f087e1 100644
--- a/website/docs/r/app_installation_repository.html.markdown
+++ b/website/docs/r/app_installation_repository.html.markdown
@@ -7,6 +7,8 @@ description: |-
 
 # github_app_installation_repository
 
+~> **Note**: This resource is not compatible with the GitHub App Installation authentication method.
+
 This resource manages relationships between app installations and repositories
 in your GitHub organization.