diff --git a/actionpack/lib/action_view/render/partials.rb b/actionpack/lib/action_view/render/partials.rb
index 6160a95e207bc..5d266c46bfee6 100644
--- a/actionpack/lib/action_view/render/partials.rb
+++ b/actionpack/lib/action_view/render/partials.rb
@@ -248,7 +248,7 @@ def collection_with_template(template = @template)
 
         @collection.each do |object|
           locals[counter_name] += 1
-          locals["#{as.to_s}_counter".to_sym] = locals[counter_name]
+          locals["#{as.to_s}_counter".to_sym] = locals[counter_name] if as
           locals[as] = object
 
           segments << template.render(@view, locals)