diff --git a/bootstrap.d/12-locale.sh b/bootstrap.d/12-locale.sh
index 79496f5..c086ee2 100644
--- a/bootstrap.d/12-locale.sh
+++ b/bootstrap.d/12-locale.sh
@@ -23,15 +23,15 @@ if [ "$(echo "$APT_INCLUDES" | grep ",locales")" ] ; then
   # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684134 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=685957
   # ... so we have to set locales manually
   if [ "$DEFLOCAL" = "en_US.UTF-8" ] ; then
-    chroot_exec echo "locales locales/locales_to_be_generated multiselect ${DEFLOCAL} UTF-8" | debconf-set-selections
+    chroot_exec echo "locales locales/locales_to_be_generated multiselect ${DEFLOCAL} UTF-8 | debconf-set-selections"
   else
     # en_US.UTF-8 should be available anyway : https://www.debian.org/doc/manuals/debian-reference/ch08.en.html#_the_reconfiguration_of_the_locale
-    chroot_exec echo "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8, ${DEFLOCAL} UTF-8" | debconf-set-selections
+    chroot_exec echo "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8, ${DEFLOCAL} UTF-8 | debconf-set-selections"
     sed -i "/en_US.UTF-8/s/^#//" "${ETC_DIR}/locale.gen"
   fi
 
   sed -i "/${DEFLOCAL}/s/^#//" "${ETC_DIR}/locale.gen"
-  chroot_exec echo "locales locales/default_environment_locale select ${DEFLOCAL}" | debconf-set-selections
+  chroot_exec echo "locales locales/default_environment_locale select ${DEFLOCAL} | debconf-set-selections"
   chroot_exec locale-gen
   chroot_exec update-locale LANG="${DEFLOCAL}"