diff --git a/roles/matrix-base/tasks/server_base/setup_debian.yml b/roles/matrix-base/tasks/server_base/setup_debian.yml
index e30d3b93b..37706d1f9 100644
--- a/roles/matrix-base/tasks/server_base/setup_debian.yml
+++ b/roles/matrix-base/tasks/server_base/setup_debian.yml
@@ -11,7 +11,7 @@
 
 - name: Ensure Docker's APT key is trusted
   apt_key:
-    url: https://download.docker.com/linux/ubuntu/gpg
+    url: "https://download.docker.com/linux/{{ ansible_distribution|lower }}/gpg"
     id: 9DC858229FC7DD38854AE2D88D81803C0EBFCD88
     state: present
   register: add_repository_key