diff --git a/django/contrib/admin/options.py b/django/contrib/admin/options.py
index 5984dd82f3..fc7541e37f 100644
--- a/django/contrib/admin/options.py
+++ b/django/contrib/admin/options.py
@@ -828,6 +828,8 @@ class InlineModelAdmin(BaseModelAdmin):
         js = []
         if self.prepopulated_fields:
             js.append('js/urlify.js')
+        if self.filter_vertical or self.filter_horizontal:
+            js.extend(['js/SelectBox.js' , 'js/SelectFilter2.js'])
         return forms.Media(js=['%s%s' % (settings.ADMIN_MEDIA_PREFIX, url) for url in js])
     media = property(_media)