diff --git a/lib/ups/parsers/base_parser.rb b/lib/ups/parsers/base_parser.rb
index e314d6e..128f275 100644
--- a/lib/ups/parsers/base_parser.rb
+++ b/lib/ups/parsers/base_parser.rb
@@ -32,6 +32,10 @@ def parsed_response
 
       private
 
+      def normalize_response_into_array(response_node)
+        [response_node].flatten
+      end
+
       def build_error_description(errors_node)
         return errors_node.last[:ErrorDescription] if errors_node.is_a?(Array)
 
diff --git a/lib/ups/parsers/rates_parser.rb b/lib/ups/parsers/rates_parser.rb
index 343cc9b..f532609 100644
--- a/lib/ups/parsers/rates_parser.rb
+++ b/lib/ups/parsers/rates_parser.rb
@@ -11,7 +11,7 @@ def rated_shipments
       private
 
       def rates
-        root_response[:RatedShipment]
+        normalize_response_into_array(root_response[:RatedShipment])
       end
 
       def root_response
diff --git a/spec/stubs/rates_success_single_rate.xml b/spec/stubs/rates_success_single_rate.xml
new file mode 100644
index 0000000..952e0fe
--- /dev/null
+++ b/spec/stubs/rates_success_single_rate.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<RatingServiceSelectionResponse>
+   <Response>
+      <ResponseStatusCode>1</ResponseStatusCode>
+      <ResponseStatusDescription>Success</ResponseStatusDescription>
+   </Response>
+   <RatedShipment>
+      <Service>
+         <Code>11</Code>
+      </Service>
+      <RatedShipmentWarning>Your invoice may vary from the displayed reference rates</RatedShipmentWarning>
+      <RatedShipmentWarning>Ship To Address Classification is changed from Commercial to Residential</RatedShipmentWarning>
+      <BillingWeight>
+         <UnitOfMeasurement>
+            <Code>KGS</Code>
+         </UnitOfMeasurement>
+         <Weight>0.5</Weight>
+      </BillingWeight>
+      <TransportationCharges>
+         <CurrencyCode>GBP</CurrencyCode>
+         <MonetaryValue>25.03</MonetaryValue>
+      </TransportationCharges>
+      <ServiceOptionsCharges>
+         <CurrencyCode>GBP</CurrencyCode>
+         <MonetaryValue>0.00</MonetaryValue>
+      </ServiceOptionsCharges>
+      <TotalCharges>
+         <CurrencyCode>GBP</CurrencyCode>
+         <MonetaryValue>25.03</MonetaryValue>
+      </TotalCharges>
+      <GuaranteedDaysToDelivery />
+      <ScheduledDeliveryTime />
+      <RatedPackage>
+         <TransportationCharges>
+            <CurrencyCode />
+            <MonetaryValue />
+         </TransportationCharges>
+         <ServiceOptionsCharges>
+            <CurrencyCode />
+            <MonetaryValue />
+         </ServiceOptionsCharges>
+         <TotalCharges>
+            <CurrencyCode />
+            <MonetaryValue />
+         </TotalCharges>
+         <Weight>0.5</Weight>
+         <BillingWeight>
+            <UnitOfMeasurement>
+               <Code />
+            </UnitOfMeasurement>
+            <Weight />
+         </BillingWeight>
+      </RatedPackage>
+   </RatedShipment>
+</RatingServiceSelectionResponse>
diff --git a/spec/ups/connection/rates_standard_spec.rb b/spec/ups/connection/rates_standard_spec.rb
index 29944cc..8df8714 100644
--- a/spec/ups/connection/rates_standard_spec.rb
+++ b/spec/ups/connection/rates_standard_spec.rb
@@ -68,6 +68,32 @@
           }
         ]
       end
+
+      describe 'when API responds with a single rate' do
+        before do
+          Excon.stub(method: :post) do |params|
+            case params[:path]
+            when UPS::Connection::RATE_PATH
+              { body: File.read("#{stub_path}/rates_success_single_rate.xml"), status: 200 }
+            end
+          end
+        end
+
+        it 'returns rates' do
+          expect(subject.rated_shipments).wont_be_empty
+          expect(subject.rated_shipments).must_equal [
+            {
+              :service_code=>"11",
+              :service_name=>"UPS Standard",
+              :warnings=>[
+                "Your invoice may vary from the displayed reference rates",
+                "Ship To Address Classification is changed from Commercial to Residential"
+              ],
+              :total=>"25.03"
+            }
+          ]
+        end
+      end
     end
 
     describe 'error rates response' do