diff --git a/app/assets/javascripts/pretty-text/addon/engines/discourse-markdown-it.js b/app/assets/javascripts/pretty-text/addon/engines/discourse-markdown-it.js
index 558f66cdf0d..b9c9f4759a9 100644
--- a/app/assets/javascripts/pretty-text/addon/engines/discourse-markdown-it.js
+++ b/app/assets/javascripts/pretty-text/addon/engines/discourse-markdown-it.js
@@ -337,9 +337,7 @@ function buildCustomMarkdownCookFunction(engineOpts, defaultEngineOpts) {
   // we don't need the whole engine as a consumer, just a cook function
   // will do
   return function customRenderFn(contentToRender) {
-    return newOpts.discourse
-      .sanitizer(newOpts.engine.render(contentToRender))
-      .trim();
+    return cook(contentToRender, newOpts);
   };
 }