diff --git a/actionpack/lib/action_view/digestor.rb b/actionpack/lib/action_view/digestor.rb
index 01074c0687369..f2c37f5613de2 100644
--- a/actionpack/lib/action_view/digestor.rb
+++ b/actionpack/lib/action_view/digestor.rb
@@ -15,7 +15,7 @@ class Digestor
     #   render(topics)         => render("topics/topic")
     #   render(message.topics) => render("topics/topic")
     RENDER_DEPENDENCY = /
-      render\s*                     # render, followed by an optional space
+      render\s*                     # render, followed by optional whitespace
       \(?                           # start a optional parenthesis for the render call
       (partial:|:partial\s+=>)?\s*  # naming the partial, used with collection -- 1st capture
       ([@a-z"'][@a-z_\/\."']+)      # the template name itself -- 2nd capture