diff --git a/services/web/app/coffee/Features/Project/ProjectEntityHandler.coffee b/services/web/app/coffee/Features/Project/ProjectEntityHandler.coffee
index d004ad0cce..57e319afcc 100644
--- a/services/web/app/coffee/Features/Project/ProjectEntityHandler.coffee
+++ b/services/web/app/coffee/Features/Project/ProjectEntityHandler.coffee
@@ -223,12 +223,9 @@ module.exports = ProjectEntityHandler =
 							callback null, fileRef, folder_id
 
 	replaceFile: (project_id, file_id, fsPath, callback)->
+		self = ProjectEntityHandler
 		ProjectGetter.getProject project_id, {name:true}, (err, project) ->
 			return callback(err) if err?
-			findOpts =
-				project_id:project._id
-				element_id:file_id
-				type:"file"
 			FileStoreHandler.uploadFileFromDisk project._id, file_id, fsPath, (err)->
 				return callback(err) if err?
 				# Note there is a potential race condition here (and elsewhere)
@@ -236,20 +233,25 @@ module.exports = ProjectEntityHandler =
 				# then the path to the file element will be out of date. In practice
 				# this is not a problem so long as we do not do anything longer running
 				# between them (like waiting for the file to upload.)
-				projectLocator.findElement findOpts, (err, fileRef, path)=>
+				self.getAllEntitiesFromProject project, (err, oldDocs, oldFiles) =>
 					return callback(err) if err?
-					tpdsUpdateSender.addFile {project_id:project._id, file_id:fileRef._id, path:path.fileSystem, rev:fileRef.rev+1, project_name:project.name}, (error) ->
+					projectLocator.findElement {project:project, element_id: file_id, type: 'file'}, (err, fileRef, path)=>
 						return callback(err) if err?
-						conditons = _id:project._id
-						inc = {}
-						inc["#{path.mongo}.rev"] = 1
-						set = {}
-						set["#{path.mongo}.created"] = new Date()
-						update =
-							"$inc": inc
-							"$set": set
-						Project.update conditons, update, {}, (err, second)->
-							callback()
+						tpdsUpdateSender.addFile {project_id:project._id, file_id:fileRef._id, path:path.fileSystem, rev:fileRef.rev+1, project_name:project.name}, (err) ->
+							return callback(err) if err?
+							conditions = _id:project._id
+							inc = {}
+							inc["#{path.mongo}.rev"] = 1
+							set = {}
+							set["#{path.mongo}.created"] = new Date()
+							update =
+								"$inc": inc
+								"$set": set
+							Project.findOneAndUpdate conditions, update, { "new": true}, (err, newProject) ->
+								return callback(err) if err?
+								self.getAllEntitiesFromProject newProject, (err, newDocs, newFiles) =>
+									return callback(err) if err?
+									DocumentUpdaterHandler.updateProjectStructure project_id, null, oldDocs, newDocs, oldFiles, newFiles, callback
 
 	copyFileFromExistingProject: (project_id, folder_id, originalProject_id, origonalFileRef, callback = (error, fileRef, folder_id) ->)->
 		logger.log project_id:project_id, folder_id:folder_id, originalProject_id:originalProject_id, origonalFileRef:origonalFileRef, "copying file in s3"
@@ -392,8 +394,7 @@ module.exports = ProjectEntityHandler =
 									endPath: result.path.fileSystem,
 									rev: entity.rev
 								tpdsUpdateSender.moveEntity opts
-								self.getAllEntitiesFromProject newProject, (error, newDocs, newFiles
-								) =>
+								self.getAllEntitiesFromProject newProject, (error, newDocs, newFiles) =>
 									return callback(error) if error?
 									DocumentUpdaterHandler.updateProjectStructure project_id, userId, oldDocs, newDocs, oldFiles, newFiles, callback
 
diff --git a/services/web/test/unit/coffee/Project/ProjectEntityHandlerTests.coffee b/services/web/test/unit/coffee/Project/ProjectEntityHandlerTests.coffee
index 506ff0cdb2..1b629f2257 100644
--- a/services/web/test/unit/coffee/Project/ProjectEntityHandlerTests.coffee
+++ b/services/web/test/unit/coffee/Project/ProjectEntityHandlerTests.coffee
@@ -583,7 +583,6 @@ describe 'ProjectEntityHandler', ->
 			@ProjectEntityHandler.addFile project_id, folder_id, fileName, {}, userId, () ->
 
 	describe 'replacing a file', ->
-
 		beforeEach ->
 			@projectLocator
 			@file_id = "file_id_here"
@@ -591,13 +590,23 @@ describe 'ProjectEntityHandler', ->
 			@fileRef = {rev:3, _id:@file_id}
 			@filePaths = {fileSystem:"/folder1/file.png", mongo:"folder.1.files.somewhere"}
 			@projectLocator.findElement = sinon.stub().callsArgWith(1, null, @fileRef, @filePaths)
-			@ProjectModel.update = (_, __, ___, cb)-> cb()
+
+			@ProjectEntityHandler.getAllEntitiesFromProject = sinon.stub()
+			@ProjectEntityHandler.getAllEntitiesFromProject
+				.onFirstCall()
+				.callsArgWith(1, null, [], @oldFiles = ['old-file'])
+			@ProjectEntityHandler.getAllEntitiesFromProject
+				.onSecondCall()
+				.callsArgWith(1, null, [], @newFiles = ['new-file'])
+			@ProjectModel.findOneAndUpdate = sinon.stub().callsArgWith(3, null, @project)
+
 			@ProjectGetter.getProject = sinon.stub().callsArgWith(2, null, @project)
 
 		it 'should find the file', (done)->
-
 			@ProjectEntityHandler.replaceFile project_id, @file_id, @fsPath, =>
-				@projectLocator.findElement.calledWith({element_id:@file_id, type:"file", project_id:project_id}).should.equal true
+				@projectLocator.findElement
+					.calledWith({element_id:@file_id, type:"file", project: @project})
+					.should.equal true
 				done()
 
 		it 'should tell the file store handler to upload the file from disk', (done)->
@@ -617,7 +626,7 @@ describe 'ProjectEntityHandler', ->
 			@ProjectEntityHandler.replaceFile project_id, @file_id, @fsPath, =>
 
 		it 'should inc the rev id', (done)->
-			@ProjectModel.update = (conditions, update, options, callback)=>
+			@ProjectModel.findOneAndUpdate = (conditions, update, options, callback)=>
 				conditions._id.should.equal project_id
 				update.$inc["#{@filePaths.mongo}.rev"].should.equal 1
 				done()
@@ -626,7 +635,7 @@ describe 'ProjectEntityHandler', ->
 
 		it 'should update the created at date', (done)->
 			d = new Date()
-			@ProjectModel.update = (conditions, update, options, callback)=>
+			@ProjectModel.findOneAndUpdate = (conditions, update, options, callback)=>
 				conditions._id.should.equal project_id
 				differenceInMs = update.$set["#{@filePaths.mongo}.created"].getTime() - d.getTime()
 				differenceInMs.should.be.below(20)
@@ -634,6 +643,12 @@ describe 'ProjectEntityHandler', ->
 
 			@ProjectEntityHandler.replaceFile project_id, @file_id, @fsPath, =>
 
+		it "should should send the old and new project structure to the doc updater", (done) ->
+			@ProjectEntityHandler.replaceFile project_id, @file_id, @fsPath, =>
+				@documentUpdaterHandler.updateProjectStructure
+					.calledWith(project_id, null, [], [], @oldFiles, @newFiles)
+					.should.equal true
+				done()
 
 	describe 'addFolder', ->
 		folderName = "folder1234"