diff --git a/.gitignore b/.gitignore
index 9f74d68..736ed9f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 *.so
 *.o
 *.a
+.rvmrc
 mkmf.log
 /.idea/
 *.iml
diff --git a/lib/telegram_bot.rb b/lib/telegram_bot.rb
index e731399..d4f493f 100644
--- a/lib/telegram_bot.rb
+++ b/lib/telegram_bot.rb
@@ -14,8 +14,8 @@
 require "telegram_bot/force_replay"
 require "telegram_bot/out_message"
 require "telegram_bot/update"
+require "telegram_bot/api_response_error"
 require "telegram_bot/api_response"
-require "telegram_bot/response_error"
 require "telegram_bot/bot"
 
 
diff --git a/lib/telegram_bot/api_response.rb b/lib/telegram_bot/api_response.rb
index f339e37..38e862a 100644
--- a/lib/telegram_bot/api_response.rb
+++ b/lib/telegram_bot/api_response.rb
@@ -10,7 +10,7 @@ def initialize(res)
         @result = data["result"]
       else
         @ok = false
-        error = ResponseError.new(res)
+        error = ApiResponseError.new(res)
         fail error, "An error has occurred: #{error.data}", caller
       end
     end
diff --git a/lib/telegram_bot/response_error.rb b/lib/telegram_bot/api_response_error.rb
similarity index 88%
rename from lib/telegram_bot/response_error.rb
rename to lib/telegram_bot/api_response_error.rb
index c22133d..befb3b5 100644
--- a/lib/telegram_bot/response_error.rb
+++ b/lib/telegram_bot/api_response_error.rb
@@ -1,5 +1,5 @@
 module TelegramBot
-  class ResponseError < StandardError
+  class ApiResponseError < StandardError
     attr_reader :response
 
     def initialize(res)
diff --git a/spec/api_response_spec.rb b/spec/api_response_spec.rb
new file mode 100644
index 0000000..2aa7136
--- /dev/null
+++ b/spec/api_response_spec.rb
@@ -0,0 +1,7 @@
+require 'minitest_helper'
+
+describe TelegramBot::ApiResponse do
+  it 'does not raise uninitialized constant TelegramBot::ApiResponse::ResponseError' do
+    expect { described_class.new(double(body: "{\"error\":\"test\"}", status: 500)) }.not_to raise_error(NameError)
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644
index 0000000..444e6e8
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,8 @@
+require 'bundler/setup'
+Bundler.setup
+
+require 'telegram_bot'
+
+RSpec.configure do |config|
+  # some config here if needed
+end
\ No newline at end of file
diff --git a/telegram_bot.gemspec b/telegram_bot.gemspec
index b31277d..bb7b6ae 100644
--- a/telegram_bot.gemspec
+++ b/telegram_bot.gemspec
@@ -23,4 +23,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler", "~> 1.7"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "minitest", "~> 5.10"
+  spec.add_development_dependency "rspec"
 end