diff --git a/.gitignore b/.gitignore
index c570838..d263f9e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.swp
 *.swo
 config/deploy.rb
+.bundle/
diff --git a/mandrill_endpoint.rb b/mandrill_endpoint.rb
index 35b7134..4583f2d 100644
--- a/mandrill_endpoint.rb
+++ b/mandrill_endpoint.rb
@@ -20,7 +20,7 @@ class MandrillEndpoint < EndpointBase::Sinatra::Base
     # create Mandrill request
     #
     request_body = {
-      key: @config['mandrill.api_key'],
+      key: @config['mandrill_api_key'],
       template_name: template,
       message: {
         from_email: from_addr,
diff --git a/spec/mandrill_endpoint_spec.rb b/spec/mandrill_endpoint_spec.rb
index 2d9a50a..d67ce4e 100644
--- a/spec/mandrill_endpoint_spec.rb
+++ b/spec/mandrill_endpoint_spec.rb
@@ -5,7 +5,7 @@
   let(:payload) {
     '{"request_id": "12e12341523e449c3000001",
       "parameters": {
-          "mandrill.api_key":"abc123"},
+          "mandrill_api_key":"abc123"},
       "email": {
         "to": "spree@example.com",
         "from": "spree@example.com",