diff --git a/app/assets/javascripts/discourse/widgets/topic-timeline.js.es6 b/app/assets/javascripts/discourse/widgets/topic-timeline.js.es6
index 71ce0c9f0af..97b69788c43 100644
--- a/app/assets/javascripts/discourse/widgets/topic-timeline.js.es6
+++ b/app/assets/javascripts/discourse/widgets/topic-timeline.js.es6
@@ -41,8 +41,9 @@ createWidget('timeline-scroller', {
   html(attrs) {
     const { current, total, date } = attrs;
 
+    const repliesKey = (total < 1000) ? 'replies' : 'replies_short';
     const contents = [
-      h('div.timeline-replies', I18n.t('topic.timeline.replies', { current, total }))
+      h('div.timeline-replies', I18n.t(`topic.timeline.${repliesKey}`, { current, total }))
     ];
 
     if (date) {
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index ffd4f498da8..9e5463fdbb2 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -1291,6 +1291,7 @@ en:
 
       timeline:
         replies: "%{current} / %{total} replies"
+        replies_short: "%{current} / %{total}"
 
       progress:
         title: topic progress