diff --git a/defaults/main.yml b/defaults/main.yml
index a432162..571c5e7 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -46,6 +46,14 @@ ceph_repo_url_region: "download"  # see here for other mirros http://docs.ceph.c
 ceph_repo_url: https://{{ ceph_repo_url_region }}.ceph.com/{{ _ceph_repo_distro_suffix }}-{{ ceph_stable_release }}
 ceph_repos: "{{ _ceph_repos }}"
 
+# Mappings from Ansible reported architecture to distro release architecture
+ceph_architecture_mapping:
+  x86_64: amd64
+  ppc64le: ppc64el
+  s390x: s390x
+  armv7l: armhf
+  aarch64: arm64
+
 # Ceph Authentication
 cephx: true
 
diff --git a/tasks/ceph_preinstall_apt.yml b/tasks/ceph_preinstall_apt.yml
index 24608fc..da08a89 100644
--- a/tasks/ceph_preinstall_apt.yml
+++ b/tasks/ceph_preinstall_apt.yml
@@ -42,8 +42,6 @@
 
 - name: Manage apt repositories
   vars:
-    _a: "{{ item.architectures }}"
-    _architecture_fixup: "{{ ((_a | d([])) is iterable and (_a | d([])) is not string) | ternary(_a, [_a]) | map('replace', 'x86_64', 'amd64') }}"
     loop_label:
       name: "{{ item.name }}"
       uris: "{{ item.uris | default('') }}"
@@ -53,7 +51,7 @@
     allow_downgrade_to_insecure: "{{ item.allow_downgrade_to_insecure | default(omit) }}"
     allow_insecure: "{{ item.allow_insecure | default(omit) }}"
     allow_weak: "{{ item.allow_weak | default(omit) }}"
-    architectures: "{{ (_architecture_fixup | length > 0) | ternary(_architecture_fixup, omit) }}"
+    architectures: "{{ item.architectures | default(omit) }}"
     by_hash: "{{ item.by_hash | default(omit) }}"
     check_date: "{{ item.check_date | default(omit) }}"
     check_valid_until: "{{ item.check_valid_until | default(omit) }}"
diff --git a/vars/debian.yml b/vars/debian.yml
index 1efb354..6ae92b4 100644
--- a/vars/debian.yml
+++ b/vars/debian.yml
@@ -36,5 +36,5 @@ _ceph_repos:
     uris: "{{ ceph_repo_url }}"
     signed_by: "{{ lookup('file', 'gpg/460f3994') }}"
     components: main
-    architectures: "{{ ansible_facts['architecture'] }}"
+    architectures: "{{ ceph_architecture_mapping.get(ansible_facts['architecture']) }}"
     state: "{{ (ceph_pkg_source == 'ceph') | ternary('present', 'absent') }}"