diff --git a/cms/static/sass/views/_outline.scss b/cms/static/sass/views/_outline.scss
index a061c69eed..a92893d0e0 100644
--- a/cms/static/sass/views/_outline.scss
+++ b/cms/static/sass/views/_outline.scss
@@ -423,6 +423,7 @@
   }
 
   .outline-unit {
+    @include transition(margin $tmg-f2 linear 0s); // needed for drag and drop transitions
     margin-left: $outline-indent-width;
 
     // header