diff --git a/scripts/image_signing/sign_official_build.sh b/scripts/image_signing/sign_official_build.sh
index 173dd6b..f365488 100755
--- a/scripts/image_signing/sign_official_build.sh
+++ b/scripts/image_signing/sign_official_build.sh
@@ -598,9 +598,10 @@
   mount_image_partition "${image}" 3 "${rootfs_dir}"
 
   local system_img="${rootfs_dir}/opt/google/containers/android/system.raw.img"
-
-  if [[ ! -e "${system_img}" ]]; then
-    info "Android image not found.  Not signing Android APKs."
+  local arc_version=$(grep CHROMEOS_ARC_VERSION= \
+    "${rootfs_dir}/etc/lsb-release" | cut -d= -f2)
+  if [[ ! -e "${system_img}" || -z "${arc_version}" ]]; then
+    info "ARC image not found.  Not signing Android APKs."
     sudo umount "${rootfs_dir}"
     return
   fi