diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3acfc4e61..95aa95009 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.17.4
+
+* Update matchers for RSpec 3's matcher protocol
+
+  Thanks to [Rob Olson](https://github.com/robolson)
+
 ## 1.17.3
 
 * Fixed issue with Rack response removing 'Content-Type' header
diff --git a/README.md b/README.md
index 266b10c6a..dc167f35d 100644
--- a/README.md
+++ b/README.md
@@ -905,6 +905,7 @@ People who submitted patches and new features or suggested improvements. Many th
 * Praveen Arimbrathodiyil
 * Bo Jeanes
 * Matthew Conway
+* Rob Olson
 * Max Lincoln
 
 For a full list of contributors you can visit the
diff --git a/lib/webmock/api.rb b/lib/webmock/api.rb
index 5a56507dd..986f8a281 100644
--- a/lib/webmock/api.rb
+++ b/lib/webmock/api.rb
@@ -71,7 +71,7 @@ def assert_request_requested(request, options = {})
 
     def assert_request_not_requested(request, options = {})
       verifier = WebMock::RequestExecutionVerifier.new(request, options.delete(:times))
-      WebMock::AssertionFailure.failure(verifier.negative_failure_message) unless verifier.does_not_match?
+      WebMock::AssertionFailure.failure(verifier.failure_message_when_negated) unless verifier.does_not_match?
     end
 
     #this is a based on RSpec::Mocks::ArgumentMatchers#anythingize_lonely_keys
diff --git a/lib/webmock/request_execution_verifier.rb b/lib/webmock/request_execution_verifier.rb
index 8e859a082..91e07edfb 100644
--- a/lib/webmock/request_execution_verifier.rb
+++ b/lib/webmock/request_execution_verifier.rb
@@ -32,7 +32,7 @@ def failure_message
       text
     end
 
-    def negative_failure_message
+    def failure_message_when_negated
       text = if @expected_times_executed
         %Q(The request #{request_pattern.to_s} was not expected to execute #{times(expected_times_executed)} but it executed #{times(times_executed)})
       else
diff --git a/lib/webmock/rspec/matchers/request_pattern_matcher.rb b/lib/webmock/rspec/matchers/request_pattern_matcher.rb
index 56dd8fe3c..d0a4f760e 100644
--- a/lib/webmock/rspec/matchers/request_pattern_matcher.rb
+++ b/lib/webmock/rspec/matchers/request_pattern_matcher.rb
@@ -34,9 +34,11 @@ def failure_message
       @request_execution_verifier.failure_message
     end
 
-
-    def negative_failure_message
-      @request_execution_verifier.negative_failure_message
+    def failure_message_when_negated
+      @request_execution_verifier.failure_message_when_negated
     end
+
+    # RSpec 2 compatibility:
+    alias_method :negative_failure_message, :failure_message_when_negated
   end
 end
diff --git a/lib/webmock/rspec/matchers/webmock_matcher.rb b/lib/webmock/rspec/matchers/webmock_matcher.rb
index 7f4b17556..900cb50bd 100644
--- a/lib/webmock/rspec/matchers/webmock_matcher.rb
+++ b/lib/webmock/rspec/matchers/webmock_matcher.rb
@@ -38,9 +38,11 @@ def failure_message
       @request_execution_verifier.failure_message
     end
 
-
-    def negative_failure_message
-      @request_execution_verifier.negative_failure_message
+    def failure_message_when_negated
+      @request_execution_verifier.failure_message_when_negated
     end
+
+    # RSpec 2 compatibility:
+    alias_method :negative_failure_message, :failure_message_when_negated
   end
 end
diff --git a/lib/webmock/version.rb b/lib/webmock/version.rb
index 0c34cdaff..e2ab55380 100644
--- a/lib/webmock/version.rb
+++ b/lib/webmock/version.rb
@@ -1,3 +1,3 @@
 module WebMock
-  VERSION = '1.17.3' unless defined?(::WebMock::VERSION)
+  VERSION = '1.17.4' unless defined?(::WebMock::VERSION)
 end
diff --git a/spec/unit/request_execution_verifier_spec.rb b/spec/unit/request_execution_verifier_spec.rb
index a10578b03..327ac6fdb 100644
--- a/spec/unit/request_execution_verifier_spec.rb
+++ b/spec/unit/request_execution_verifier_spec.rb
@@ -37,14 +37,14 @@
       @verifier.expected_times_executed = 2
       expected_text = "The request www.example.com was not expected to execute 2 times but it executed 2 times"
       expected_text << @executed_requests_info
-      @verifier.negative_failure_message.should == expected_text
+      @verifier.failure_message_when_negated.should == expected_text
     end
 
     it "should report failure message when not expected request but it executed" do
       @verifier.times_executed = 1
       expected_text = "The request www.example.com was expected to execute 0 times but it executed 1 time"
       expected_text << @executed_requests_info
-      @verifier.negative_failure_message.should == expected_text
+      @verifier.failure_message_when_negated.should == expected_text
     end
 
   end