diff --git a/src/application-manager.d.ts b/src/application-manager.d.ts
index 99b771e3..a4575943 100644
--- a/src/application-manager.d.ts
+++ b/src/application-manager.d.ts
@@ -1,3 +1,4 @@
+import * as Bluebird from 'bluebird';
 import { EventEmitter } from 'events';
 
 import { ServiceAction } from './device-api/common';
@@ -40,7 +41,7 @@ export class ApplicationManager extends EventEmitter {
 	public db: DB;
 	public images: Images;
 
-	public getCurrentApp(appId: number): Promise<Application | null>;
+	public getCurrentApp(appId: number): Bluebird<Application | null>;
 
 	// TODO: This actually returns an object, but we don't need the values just yet
 	public setTargetVolatileForService(serviceId: number, opts: Options): void;
@@ -48,11 +49,11 @@ export class ApplicationManager extends EventEmitter {
 	public executeStepAction(
 		serviceAction: ServiceAction,
 		opts: Options,
-	): Promise<void>;
+	): Bluebird<void>;
 
 	public getStatus(): Promise<DeviceApplicationState>;
 
-	public serviceNameFromId(serviceId: number): Promise<string>;
+	public serviceNameFromId(serviceId: number): Bluebird<string>;
 }
 
 export default ApplicationManager;
diff --git a/src/compose/images.coffee b/src/compose/images.coffee
index e3458e06..ec4ed2ff 100644
--- a/src/compose/images.coffee
+++ b/src/compose/images.coffee
@@ -249,7 +249,7 @@ module.exports = class Images extends EventEmitter
 					supervisorRepos = [ supervisorImageInfo.imageName ]
 					if _.startsWith(supervisorImageInfo.imageName, 'balena/') # We're on a new balena/ARCH-supervisor image
 						supervisorRepos.push(supervisorImageInfo.imageName.replace(/^balena/, 'resin/'))
-					return _.some(supervisorRepos, (repo) -> imageName == img) and tagName != supervisorImageInfo.tagName
+					return _.some(supervisorRepos, (repo) -> imageName == repo) and tagName != supervisorImageInfo.tagName
 				isDangling = (image) ->
 					# Looks like dangling images show up with these weird RepoTags and RepoDigests sometimes
 					(_.isEmpty(image.RepoTags) or _.isEqual(image.RepoTags, [ '<none>:<none>' ])) and
diff --git a/src/device-api/v2.ts b/src/device-api/v2.ts
index a5a5b6dd..09f37dad 100644
--- a/src/device-api/v2.ts
+++ b/src/device-api/v2.ts
@@ -5,7 +5,11 @@ import { fs } from 'mz';
 
 import { ApplicationManager } from '../application-manager';
 import { Service } from '../compose/service';
-import { appNotFoundMessage, serviceNotFoundMessage } from '../lib/messages';
+import {
+	appNotFoundMessage,
+	serviceNotFoundMessage,
+	v2ServiceEndpointInputErrorMessage,
+} from '../lib/messages';
 import { checkTruthy } from '../lib/validation';
 import { doPurge, doRestart, serviceAction } from './common';
 
@@ -31,7 +35,7 @@ export function createV2Api(router: Router, applications: ApplicationManager) {
 		res: Response,
 		action: any,
 	): Bluebird<void> => {
-		const { imageId, force } = req.body;
+		const { imageId, serviceName, force } = req.body;
 		const { appId } = req.params;
 
 		return _lockingIfNecessary(appId, { force }, () => {
@@ -42,7 +46,23 @@ export function createV2Api(router: Router, applications: ApplicationManager) {
 						res.status(404).send(appNotFoundMessage);
 						return;
 					}
-					const service = _.find(app.services, { imageId }) as Service | null;
+
+					// Work if we have a service name or an image id
+					if (imageId == null) {
+						if (serviceName == null) {
+							throw new Error(v2ServiceEndpointInputErrorMessage);
+						}
+					}
+
+					let service: Service | undefined;
+					if (imageId != null) {
+						service = _.find(app.services, svc => svc.imageId === imageId);
+					} else {
+						service = _.find(
+							app.services,
+							svc => svc.serviceName === serviceName,
+						);
+					}
 					if (service == null) {
 						res.status(404).send(serviceNotFoundMessage);
 						return;
diff --git a/src/lib/messages.ts b/src/lib/messages.ts
index a1eae4fd..95606c8e 100644
--- a/src/lib/messages.ts
+++ b/src/lib/messages.ts
@@ -4,3 +4,6 @@ export const appNotFoundMessage = `App not found: an app needs to be installed f
 
 export const serviceNotFoundMessage =
 	'Service not found, a container must exist for this endpoint to work';
+
+export const v2ServiceEndpointInputErrorMessage =
+	'This endpoint requires one of imageId or serviceName';