diff --git a/Build-tf b/Build-tf
index 8707c674..13c0fc98 100755
--- a/Build-tf
+++ b/Build-tf
@@ -3,6 +3,9 @@
 set -xeu
 set -o pipefail
 
+export LANG=en_US.UTF-8
+LANG=en_US.UTF-8
+
 function finish() {
   ditto -c -k --sequesterRsrc --keepParent "${RESULT_BUNDLE_PATH}" "${RESULT_BUNDLE_PATH}.zip"
   rm -rf "${RESULT_BUNDLE_PATH}"