diff --git a/README.md b/README.md
index dfca850..1dc3136 100644
--- a/README.md
+++ b/README.md
@@ -93,19 +93,19 @@ parameters = {
 @mailgun.list_members.list "devs@your.mailgun.domain"
 
 # Find a particular member in a list
-@mailgun.list_members.find "devs@your.mailgun.domain", "bond@mi6.co.uk"
+@mailgun.list_members("devs@your.mailgun.domain").find("bond@mi6.co.uk")
 
 # Add a member to a list
-@mailgun.list_members.add "devs@your.mailgun.domain", "Q@mi6.co.uk"
+@mailgun.list_members("devs@your.mailgun.domain").add("Q@mi6.co.uk")
 
 # Add multiple mailing list members to a list (limit 1,000 per call)
-@mailgun.list_members.add_multi "devs@your.mailgun.domain", [{"address": "Alice <alice@example.com>", "vars": {"age": 26}}, {"name": "Bob", "address": "bob@example.com", "vars": {"age": 34}}].to_json, {:upsert => true}
-    
+@mailgun.list_members("devs@your.mailgun.domain").add_multi([{"address": "Alice <alice@example.com>", "vars": {"age": 26}}, {"name": "Bob", "address": "bob@example.com", "vars": {"age": 34}}].to_json, {:upsert => true})
+
 # Update a member on a list
-@mailgun.list_members.update "devs@your.mailgun.domain", "Q@mi6.co.uk", "Q", {:gender => 'male'}.to_json, :subscribed => 'no')
+@mailgun.list_members("devs@your.mailgun.domain").update("Q@mi6.co.uk", "Q", {:gender => 'male'}.to_json, :subscribed => 'no'))
 
 # Remove a member from a list
-@mailgun.list_members.remove "devs@your.mailgun.domain", "M@mi6.co.uk"
+@mailgun.list_members("devs@your.mailgun.domain").remove("M@mi6.co.uk")
 ```
 
 #### Mailboxes
diff --git a/lib/mailgun.rb b/lib/mailgun.rb
index d8a1b77..5dccc36 100644
--- a/lib/mailgun.rb
+++ b/lib/mailgun.rb
@@ -1,4 +1,5 @@
 require "json"
+require "net/http"
 require "multimap/lib/multimap"
 require "multimap/lib/multiset"
 require "multimap/lib/nested_multimap"