diff --git a/tasks/main.yml b/tasks/main.yml
index f58a45e..6ffbd58 100755
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -24,9 +24,9 @@
     dest: /etc/apt/keyrings/docker.asc
     mode: '0644'
 
-- name: Add Docker repository for Debian 13 (use bookworm)
+- name: Add Docker repository
   apt_repository:
-    repo: "deb [arch=arm64 signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian bookworm stable"
+    repo: "deb [arch={{ docker_apt_arch[ansible_architecture] | default(ansible_architecture) }} signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian {{ ansible_distribution_release }} stable"
     state: present
     filename: docker
 
diff --git a/vars/main.yml b/vars/main.yml
index ed97d53..7d98a07 100755
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -1 +1,5 @@
 ---
+# ansible_architecture -> Debian package architecture
+docker_apt_arch:
+  aarch64: arm64
+  x86_64: amd64