diff --git a/services/document-updater/app/coffee/HistoryManager.coffee b/services/document-updater/app/coffee/HistoryManager.coffee
index 6d567234da..3ccc42e97f 100644
--- a/services/document-updater/app/coffee/HistoryManager.coffee
+++ b/services/document-updater/app/coffee/HistoryManager.coffee
@@ -5,9 +5,6 @@ HistoryRedisManager = require "./HistoryRedisManager"
 
 module.exports = HistoryManager =
 	flushDocChangesAsync: (project_id, doc_id) ->
-		HistoryManager._flushDocChangesAsync project_id, doc_id
-
-	_flushDocChangesAsync: (project_id, doc_id) ->
 		if !Settings.apis?.trackchanges?
 			logger.warn { doc_id }, "track changes API is not configured, so not flushing"
 			return
@@ -51,7 +48,7 @@ module.exports = HistoryManager =
 				# Do this in the background since it uses HTTP and so may be too
 				# slow to wait for when processing a doc update.
 				logger.log { doc_ops_length, doc_id, project_id }, "flushing track changes api"
-				HistoryManager._flushDocChangesAsync project_id, doc_id
+				HistoryManager.flushDocChangesAsync project_id, doc_id
 			callback()
 
 	shouldFlushHistoryOps: (length, ops_length, threshold) ->
diff --git a/services/document-updater/test/unit/coffee/HistoryManager/HistoryManagerTests.coffee b/services/document-updater/test/unit/coffee/HistoryManager/HistoryManagerTests.coffee
index 161b7afd44..6e5010d89c 100644
--- a/services/document-updater/test/unit/coffee/HistoryManager/HistoryManagerTests.coffee
+++ b/services/document-updater/test/unit/coffee/HistoryManager/HistoryManagerTests.coffee
@@ -21,11 +21,11 @@ describe "HistoryManager", ->
 		@doc_id = "mock-doc-id"
 		@callback = sinon.stub()
 
-	describe "_flushDocChangesAsync", ->
+	describe "flushDocChangesAsync", ->
 		beforeEach ->
 			@request.post = sinon.stub().callsArgWith(1, null, statusCode: 204)
 
-			@HistoryManager._flushDocChangesAsync @project_id, @doc_id
+			@HistoryManager.flushDocChangesAsync @project_id, @doc_id
 
 		it "should send a request to the track changes api", ->
 			@request.post
@@ -51,7 +51,7 @@ describe "HistoryManager", ->
 
 			@HistoryManager.flushProjectChangesAsync = sinon.stub()
 			@HistoryRedisManager.recordDocHasHistoryOps = sinon.stub().callsArg(3)
-			@HistoryManager._flushDocChangesAsync = sinon.stub()
+			@HistoryManager.flushDocChangesAsync = sinon.stub()
 
 		describe "with no ops", ->
 			beforeEach ->
@@ -66,7 +66,7 @@ describe "HistoryManager", ->
 				@HistoryRedisManager.recordDocHasHistoryOps.called.should.equal false
 
 			it "should not flush doc changes", ->
-				@HistoryManager._flushDocChangesAsync.called.should.equal false
+				@HistoryManager.flushDocChangesAsync.called.should.equal false
 
 			it "should call the callback", ->
 				@callback.called.should.equal true
@@ -91,7 +91,7 @@ describe "HistoryManager", ->
 					.calledWith(@project_id, @doc_id, @ops)
 
 			it "should not flush doc changes", ->
-				@HistoryManager._flushDocChangesAsync.called.should.equal false
+				@HistoryManager.flushDocChangesAsync.called.should.equal false
 
 			it "should call the callback", ->
 				@callback.called.should.equal true
@@ -114,7 +114,7 @@ describe "HistoryManager", ->
 					.calledWith(@project_id, @doc_id, @ops)
 
 			it "should flush doc changes", ->
-				@HistoryManager._flushDocChangesAsync
+				@HistoryManager.flushDocChangesAsync
 					.calledWith(@project_id, @doc_id)
 					.should.equal true
 
@@ -132,7 +132,7 @@ describe "HistoryManager", ->
 				)
 
 			it "should not flush doc changes", ->
-				@HistoryManager._flushDocChangesAsync.called.should.equal false
+				@HistoryManager.flushDocChangesAsync.called.should.equal false
 
 			it "should call the callback with the error", ->
 				@callback.calledWith(@error).should.equal true