diff --git a/ci-automation/base_sysexts.sh b/ci-automation/base_sysexts.sh
index 7c58d574b1..d5afeac5ea 100644
--- a/ci-automation/base_sysexts.sh
+++ b/ci-automation/base_sysexts.sh
@@ -1,16 +1,11 @@
-# Definitions of base sysexts to be built, for each arch. Used by
-# image.sh and image_changes.sh.
+# Definitions of base sysexts to be built. Used by image.sh and
+# image_changes.sh.
 
 if [[ ${1:-} = 'local' ]]; then
-    local amd64_base_sysexts arm64_base_sysexts
+    local ciabs_base_sysexts
 fi
 
-amd64_base_sysexts=(
-    'containerd-flatcar:app-containers/containerd'
-    'docker-flatcar:app-containers/docker'
-)
-
-arm64_base_sysexts=(
+ciabs_base_sysexts=(
     'containerd-flatcar:app-containers/containerd'
     'docker-flatcar:app-containers/docker'
 )
diff --git a/ci-automation/image.sh b/ci-automation/image.sh
index 5f9c9c252f..139956970c 100644
--- a/ci-automation/image.sh
+++ b/ci-automation/image.sh
@@ -87,9 +87,8 @@ function _image_build_impl() {
     apply_local_patches
 
     source ci-automation/base_sysexts.sh 'local'
-    local -n base_sysexts_ref="${arch}_base_sysexts"
     local base_sysexts_param
-    base_sysexts_param=$(export IFS=,; echo "${base_sysexts_ref[*]}")
+    base_sysexts_param=$(export IFS=,; echo "${ciabs_base_sysexts[*]}")
 
     # build image and related artifacts
     ./run_sdk_container -x ./ci-cleanup.sh -n "${image_container}" -C "${packages_image}" \
diff --git a/ci-automation/image_changes.sh b/ci-automation/image_changes.sh
index a036d52a89..372c2d0819 100644
--- a/ci-automation/image_changes.sh
+++ b/ci-automation/image_changes.sh
@@ -279,11 +279,10 @@ function get_base_sysext_list() {
     local -n list_var_ref=${1}; shift
 
     source "${scripts_repo}/ci-automation/base_sysexts.sh" 'local'
-    local -n base_sysexts_ref="${arch}_base_sysexts"
 
     list_var_ref=()
     local entry
-    for entry in "${base_sysexts_ref[@]}"; do
+    for entry in "${ciabs_base_sysexts[@]}"; do
         list_var_ref+=( "${entry%%:*}" )
     done
 }