diff --git a/wagtail/admin/templates/wagtailadmin/admin_base.html b/wagtail/admin/templates/wagtailadmin/admin_base.html
index 58a27a2eb3..31637429d1 100644
--- a/wagtail/admin/templates/wagtailadmin/admin_base.html
+++ b/wagtail/admin/templates/wagtailadmin/admin_base.html
@@ -50,6 +50,7 @@
     <script src="{% versioned_static 'wagtailadmin/js/vendor/bootstrap-modal.js' %}"></script>
     <script src="{% versioned_static 'wagtailadmin/js/vendor/bootstrap-tab.js' %}"></script>
     <script src="{% versioned_static 'wagtailadmin/js/vendor/tag-it.js' %}"></script>
+    <script src="{% url 'wagtailadmin_javascript_catalog' %}"></script>
     <script src="{% versioned_static 'wagtailadmin/js/core.js' %}"></script>
     <script src="{% versioned_static 'wagtailadmin/js/vendor.js' %}"></script>
     <script src="{% versioned_static 'wagtailadmin/js/wagtailadmin.js' %}"></script>
diff --git a/wagtail/admin/urls/__init__.py b/wagtail/admin/urls/__init__.py
index 4f56481a40..f4303a3435 100644
--- a/wagtail/admin/urls/__init__.py
+++ b/wagtail/admin/urls/__init__.py
@@ -7,6 +7,7 @@ from django.urls import include, path, re_path
 from django.views.decorators.cache import never_cache
 from django.views.defaults import page_not_found
 from django.views.generic import TemplateView
+from django.views.i18n import JavaScriptCatalog
 
 from wagtail import hooks
 from wagtail.admin.api import urls as api_urls
@@ -83,6 +84,11 @@ urlpatterns = [
     ),
     path("account/", account.account, name="wagtailadmin_account"),
     path("logout/", account.LogoutView.as_view(), name="wagtailadmin_logout"),
+    path(
+        "jsi18n/",
+        JavaScriptCatalog.as_view(packages=["wagtail.admin"]),
+        name="wagtailadmin_javascript_catalog",
+    ),
 ]