diff --git a/app/assets/javascripts/discourse/components/composer-editor.js.es6 b/app/assets/javascripts/discourse/components/composer-editor.js.es6
index 390b5f7f282..a93267c6693 100644
--- a/app/assets/javascripts/discourse/components/composer-editor.js.es6
+++ b/app/assets/javascripts/discourse/components/composer-editor.js.es6
@@ -632,7 +632,7 @@ export default Ember.Component.extend({
         cacheShortUploadUrl(upload.short_url, upload.url);
         this.appEvents.trigger(
           "composer:replace-text",
-          uploadPlaceholder,
+          uploadPlaceholder.trim(),
           markdown
         );
         this._resetUpload(false);