diff --git a/src/locale-data.mjs b/src/locale-data.mjs
index 949f863f1..d2734b5c6 100644
--- a/src/locale-data.mjs
+++ b/src/locale-data.mjs
@@ -1,76 +1,76 @@
 // temporarily we have all the locale data in scratch-l10n
 
-import en from './locale-data/en';
-import af from './locale-data/af';
-import am from './locale-data/am';
-import ar from './locale-data/ar';
-import ast from './locale-data/ast';
-import az from './locale-data/az';
-import be from './locale-data/be';
-import bn from './locale-data/bn';
-import bg from './locale-data/bg';
-import ca from './locale-data/ca';
-import ckb from './locale-data/ckb';
-import cs from './locale-data/cs';
-import cy from './locale-data/cy';
-import da from './locale-data/da';
-import de from './locale-data/de';
-import el from './locale-data/el';
-import eo from './locale-data/eo';
-import es from './locale-data/es';
-import et from './locale-data/et';
-import eu from './locale-data/eu';
-import fa from './locale-data/fa';
-import fi from './locale-data/fi';
-import fil from './locale-data/fil';
-import fr from './locale-data/fr';
-import fy from './locale-data/fy';
-import ga from './locale-data/ga';
-import gd from './locale-data/gd';
-import gl from './locale-data/gl';
-import ha from './locale-data/ha';
-import he from './locale-data/he';
-import hi from './locale-data/hi';
-import hu from './locale-data/hu';
-import hr from './locale-data/hr';
-import hy from './locale-data/hy';
-import id from './locale-data/id';
-import is from './locale-data/is';
-import it from './locale-data/it';
-import ja from './locale-data/ja';
-import ka from './locale-data/ka';
-import kk from './locale-data/kk';
-import ko from './locale-data/ko';
-import km from './locale-data/km';
-import ku from './locale-data/ku';
-import lt from './locale-data/lt';
-import lv from './locale-data/lv';
-import mi from './locale-data/mi';
-import mn from './locale-data/mn';
-import nl from './locale-data/nl';
-import nb from './locale-data/nb';
-import nn from './locale-data/nn';
-import nso from './locale-data/nso';
-import or from './locale-data/or';
-import pl from './locale-data/pl';
-import pt from './locale-data/pt';
-import qu from './locale-data/qu';
-import ro from './locale-data/ro';
-import ru from './locale-data/ru';
-import sl from './locale-data/sl';
-import sk from './locale-data/sk';
-import sr from './locale-data/sr';
-import sv from './locale-data/sv';
-import sw from './locale-data/sw';
-import th from './locale-data/th';
-import tr from './locale-data/tr';
-import tn from './locale-data/tn';
-import uk from './locale-data/uk';
-import uz from './locale-data/uz';
-import vi from './locale-data/vi';
-import xh from './locale-data/xh';
-import zh from './locale-data/zh';
-import zu from './locale-data/zu';
+import en from './locale-data/en.js';
+import af from './locale-data/af.js';
+import am from './locale-data/am.js';
+import ar from './locale-data/ar.js';
+import ast from './locale-data/ast.js';
+import az from './locale-data/az.js';
+import be from './locale-data/be.js';
+import bn from './locale-data/bn.js';
+import bg from './locale-data/bg.js';
+import ca from './locale-data/ca.js';
+import ckb from './locale-data/ckb.js';
+import cs from './locale-data/cs.js';
+import cy from './locale-data/cy.js';
+import da from './locale-data/da.js';
+import de from './locale-data/de.js';
+import el from './locale-data/el.js';
+import eo from './locale-data/eo.js';
+import es from './locale-data/es.js';
+import et from './locale-data/et.js';
+import eu from './locale-data/eu.js';
+import fa from './locale-data/fa.js';
+import fi from './locale-data/fi.js';
+import fil from './locale-data/fil.js';
+import fr from './locale-data/fr.js';
+import fy from './locale-data/fy.js';
+import ga from './locale-data/ga.js';
+import gd from './locale-data/gd.js';
+import gl from './locale-data/gl.js';
+import ha from './locale-data/ha.js';
+import he from './locale-data/he.js';
+import hi from './locale-data/hi.js';
+import hu from './locale-data/hu.js';
+import hr from './locale-data/hr.js';
+import hy from './locale-data/hy.js';
+import id from './locale-data/id.js';
+import is from './locale-data/is.js';
+import it from './locale-data/it.js';
+import ja from './locale-data/ja.js';
+import ka from './locale-data/ka.js';
+import kk from './locale-data/kk.js';
+import ko from './locale-data/ko.js';
+import km from './locale-data/km.js';
+import ku from './locale-data/ku.js';
+import lt from './locale-data/lt.js';
+import lv from './locale-data/lv.js';
+import mi from './locale-data/mi.js';
+import mn from './locale-data/mn.js';
+import nl from './locale-data/nl.js';
+import nb from './locale-data/nb.js';
+import nn from './locale-data/nn.js';
+import nso from './locale-data/nso.js';
+import or from './locale-data/or.js';
+import pl from './locale-data/pl.js';
+import pt from './locale-data/pt.js';
+import qu from './locale-data/qu.js';
+import ro from './locale-data/ro.js';
+import ru from './locale-data/ru.js';
+import sl from './locale-data/sl.js';
+import sk from './locale-data/sk.js';
+import sr from './locale-data/sr.js';
+import sv from './locale-data/sv.js';
+import sw from './locale-data/sw.js';
+import th from './locale-data/th.js';
+import tr from './locale-data/tr.js';
+import tn from './locale-data/tn.js';
+import uk from './locale-data/uk.js';
+import uz from './locale-data/uz.js';
+import vi from './locale-data/vi.js';
+import xh from './locale-data/xh.js';
+import zh from './locale-data/zh.js';
+import zu from './locale-data/zu.js';
 
 import {customLocales} from './supported-locales.mjs';