diff --git a/dsl/pact.go b/dsl/pact.go
index d50aabb93..79953fcf8 100644
--- a/dsl/pact.go
+++ b/dsl/pact.go
@@ -532,11 +532,10 @@ func (p *Pact) VerifyMessageConsumerRaw(message *Message, handler MessageConsume
 
 	// If no errors, update Message Pact
 	return p.pactClient.UpdateMessagePact(types.PactMessageRequest{
-		Message:           message,
-		Consumer:          p.Consumer,
-		Provider:          p.Provider,
-		PactFileWriteMode: p.PactFileWriteMode,
-		PactDir:           p.PactDir,
+		Message:  message,
+		Consumer: p.Consumer,
+		Provider: p.Provider,
+		PactDir:  p.PactDir,
 	})
 }
 
diff --git a/examples/messages/consumer/message_pact_consumer_test.go b/examples/messages/consumer/message_pact_consumer_test.go
index 652d59030..6d39a7ea8 100644
--- a/examples/messages/consumer/message_pact_consumer_test.go
+++ b/examples/messages/consumer/message_pact_consumer_test.go
@@ -107,11 +107,10 @@ var logDir = fmt.Sprintf("%s/log", dir)
 // Setup the Pact client.
 func createPact() dsl.Pact {
 	return dsl.Pact{
-		Consumer:          "PactGoMessageConsumer",
-		Provider:          "PactGoMessageProvider",
-		LogDir:            logDir,
-		PactDir:           pactDir,
-		LogLevel:          "DEBUG",
-		PactFileWriteMode: "update",
+		Consumer: "PactGoMessageConsumer",
+		Provider: "PactGoMessageProvider",
+		LogDir:   logDir,
+		PactDir:  pactDir,
+		LogLevel: "DEBUG",
 	}
 }
diff --git a/examples/messages/provider/message_pact_provider_test.go b/examples/messages/provider/message_pact_provider_test.go
index df58bb39c..8dc78744c 100644
--- a/examples/messages/provider/message_pact_provider_test.go
+++ b/examples/messages/provider/message_pact_provider_test.go
@@ -71,10 +71,9 @@ var logDir = fmt.Sprintf("%s/log", dir)
 // Setup the Pact client.
 func createPact() dsl.Pact {
 	return dsl.Pact{
-		Consumer:          "PactGoMessageConsumer",
-		Provider:          "PactGoMessageProvider",
-		LogDir:            logDir,
-		LogLevel:          "DEBUG",
-		PactFileWriteMode: "update",
+		Consumer: "PactGoMessageConsumer",
+		Provider: "PactGoMessageProvider",
+		LogDir:   logDir,
+		LogLevel: "DEBUG",
 	}
 }
diff --git a/types/pact_message_request.go b/types/pact_message_request.go
index c93fedf56..231325e30 100644
--- a/types/pact_message_request.go
+++ b/types/pact_message_request.go
@@ -18,14 +18,6 @@ type PactMessageRequest struct {
 	// PactDir is the location of where pacts should be stored
 	PactDir string
 
-	// PactFileWriteMode specifies how to write to the Pact file, for the life
-	// of a Mock Service.
-	// "overwrite" will always truncate and replace the pact after each run
-	// "update" will append to the pact file, which is useful if your tests
-	// are split over multiple files and instantiations of a Mock Server
-	// See https://github.com/pact-foundation/pact-ruby/blob/master/documentation/configuration.md#pactfile_write_mode
-	PactFileWriteMode string
-
 	// Args are the arguments sent to to the message service
 	Args []string
 }
@@ -41,7 +33,7 @@ func (m *PactMessageRequest) Validate() error {
 	}
 
 	m.Args = append(m.Args, []string{
-		m.PactFileWriteMode,
+		"update",
 		string(body),
 		"--consumer",
 		m.Consumer,