diff --git a/README.md b/README.md
index c2f0dc5..47bb841 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,7 @@ The main Docker repo URL, common between Debian and RHEL systems.
 ```yaml
 docker_apt_release_channel: stable
 docker_apt_arch: "{{ 'arm64' if ansible_architecture == 'aarch64' else 'amd64' }}"
-docker_apt_repository: "deb [arch={{ docker_apt_arch }}] {{ docker_repo_url }}/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} {{ docker_apt_release_channel }}"
+docker_apt_repository: "deb [arch={{ docker_apt_arch }}{{' signed-by=/etc/apt/keyrings/docker.asc' if add_repository_key is not failed}}] {{ docker_repo_url }}/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} {{ docker_apt_release_channel }}"
 docker_apt_ignore_key_error: True
 docker_apt_gpg_key: "{{ docker_repo_url }}/{{ ansible_distribution | lower }}/gpg"
 docker_apt_filename: "docker"