diff --git a/lib/geocoder/lookups/mapquest.rb b/lib/geocoder/lookups/mapquest.rb
index 8c325e49ecc5b3c52f1ae94bc409074bb9282ddb..ce0c8ac02f4dda4d8c30eaf4bb7efb1cdf786b6b 100644
--- a/lib/geocoder/lookups/mapquest.rb
+++ b/lib/geocoder/lookups/mapquest.rb
@@ -10,7 +10,7 @@ module Geocoder::Lookup
     end
 
     def required_api_key_parts
-      ["key"]
+      []
     end
 
     def query_url(query)