diff --git a/app/assets/javascripts/discourse/lib/transform-post.js.es6 b/app/assets/javascripts/discourse/lib/transform-post.js.es6
index ac574a4a1ce..dbdc8c0246f 100644
--- a/app/assets/javascripts/discourse/lib/transform-post.js.es6
+++ b/app/assets/javascripts/discourse/lib/transform-post.js.es6
@@ -179,7 +179,7 @@ export default function transformPost(
     postAtts.userFilters = postStream.userFilters;
 
     if (topic.force_summary_mode) {
-      postStream.set('summary', topic.force_summary_mode);
+      postStream.set("summary", topic.force_summary_mode);
     }
 
     postAtts.topicSummaryEnabled = postStream.summary;