diff --git a/lib/functions/rootfs/create-cache.sh b/lib/functions/rootfs/create-cache.sh
index 76fa382eca..0be75c4ffb 100644
--- a/lib/functions/rootfs/create-cache.sh
+++ b/lib/functions/rootfs/create-cache.sh
@@ -29,7 +29,7 @@ function calculate_rootfs_cache_id() {
 	declare -a extension_hooks_hashed=("$(dump_extension_method_sources_functions "${extension_hooks_to_hash[@]}")")
 	declare hash_hooks="undetermined"
 	declare legacy_debootstrap="${LEGACY_DEBOOTSTRAP:-"no"}"
-	hash_hooks="$(echo "${extension_hooks_hashed[@]}" LDB=${legacy_debootstrap,,} | sha256sum | cut -d' ' -f1)"
+	hash_hooks="$(echo "${extension_hooks_hashed[@]}" LDB=${legacy_debootstrap,,} LANG=${DEST_LANG} | sha256sum | cut -d' ' -f1)"
 	declare hash_hooks_short="${hash_hooks:0:${short_hash_size}}"
 
 	# AGGREGATED_ROOTFS_HASH is produced by aggregation.py