diff --git a/lib/ansible_tower_client/base_model.rb b/lib/ansible_tower_client/base_model.rb
index 31a7136..a7f83ee 100644
--- a/lib/ansible_tower_client/base_model.rb
+++ b/lib/ansible_tower_client/base_model.rb
@@ -95,11 +95,7 @@ def update_attributes!(attributes)
       @api.patch(url, attributes.to_json)
       attributes.each do |method_name, value|
         invoke_name = "#{override_raw_attributes[method_name] || method_name}="
-        if respond_to?(invoke_name)
-          send(invoke_name, value)
-        else
-          AnsibleTowerClient.logger.warn("Unknown attribute/method: #{invoke_name}. Skip updating it ...")
-        end
+        send(invoke_name, value)
       end
       true
     end
diff --git a/spec/support/shared_examples/crud_methods.rb b/spec/support/shared_examples/crud_methods.rb
index 267bcba..f65da30 100644
--- a/spec/support/shared_examples/crud_methods.rb
+++ b/spec/support/shared_examples/crud_methods.rb
@@ -37,12 +37,6 @@
         expect(obj.name).to eq 'blah'
       end
 
-      it "ignore unknown attributes if patch succeeds" do
-        expect(instance_api).to receive(:patch).and_return(instance_double("Faraday::Result", :body => raw_instance.to_json))
-        expect(obj.update_attributes!(:name => 'blah', :stranger_thing => 'bomb')).to eq true
-        expect(obj.name).to eq 'blah'
-      end
-
       it "returns an error if an error is raised" do
         expect(instance_api).to receive(:patch).and_raise(AnsibleTowerClient::Error, 'error')
         expect { obj.update_attributes!(:name => 'bad name') }.to raise_error(AnsibleTowerClient::Error)