diff --git a/lib/bamboo/adapters/mandrill_helper.ex b/lib/bamboo/adapters/mandrill_helper.ex
index 1cbcd731..eec0ee26 100644
--- a/lib/bamboo/adapters/mandrill_helper.ex
+++ b/lib/bamboo/adapters/mandrill_helper.ex
@@ -38,6 +38,11 @@ defmodule Bamboo.MandrillHelper do
   @doc """
   Set merge_vars that are used by Mandrill 
 
+  ## Example
+
+      email
+      |> put_merge_vars(users, fn(user) -> %{first_name: user.first_name} end)
+
   A convenience function for: 
 
       email
@@ -61,11 +66,6 @@ defmodule Bamboo.MandrillHelper do
           ]
         }
       ])
-
-  ## Example
-
-      email
-      |> put_merge_vars(users, fn(user) -> %{first_name: user.first_name} end)
   """
   def put_merge_vars(email, enumerable, fun) do
     merge_vars = Enum.map(enumerable, fn(e) ->
diff --git a/test/lib/bamboo/adapters/mandrill_helper_test.exs b/test/lib/bamboo/adapters/mandrill_helper_test.exs
index 12c4d2a3..8fb510b8 100644
--- a/test/lib/bamboo/adapters/mandrill_helper_test.exs
+++ b/test/lib/bamboo/adapters/mandrill_helper_test.exs
@@ -21,8 +21,9 @@ defmodule Bamboo.MandrillHelperTest do
       }
     ]
 
-    email = new_email
-    |> MandrillHelper.put_merge_vars(users, fn(user) -> %{ full_name: user.full_name } end)
+    email = MandrillHelper.put_merge_vars new_email, users, fn(user) ->
+      %{full_name: user.full_name}
+    end
 
     assert email.private.message_params == %{"merge_vars" => [
         %{