diff --git a/usr/libexec/security-misc/apt-get-update b/usr/libexec/security-misc/apt-get-update
index fc90a5e..729baca 100755
--- a/usr/libexec/security-misc/apt-get-update
+++ b/usr/libexec/security-misc/apt-get-update
@@ -8,7 +8,7 @@ set -o nounset
 set -o errtrace
 set -o pipefail
 
-export LANG=C
+export LC_ALL=C
 
 write_pid_file() {
   [[ -z "${TMP:-}" ]] && error "TMP is unset"