diff --git a/src/api/models/sw-subscription.ts b/src/api/models/sw-subscription.ts
index ecca04cb91..235c801c7d 100644
--- a/src/api/models/sw-subscription.ts
+++ b/src/api/models/sw-subscription.ts
@@ -1,3 +1,13 @@
+import * as mongo from 'mongodb';
 import db from '../../db/mongodb';
 
-export default db.get('sw_subscriptions') as any; // fuck type definition
+const SwSubscription = db.get<ISwSubscription>('swSubscriptions');
+export default SwSubscription;
+
+export interface ISwSubscription {
+	_id: mongo.ObjectID;
+	userId: mongo.ObjectID;
+	endpoint: string;
+	auth: string;
+	publickey: string;
+}
diff --git a/tools/migration/shell.camel-case.js b/tools/migration/shell.camel-case.js
index 533868cdc4..9cb0baaaf5 100644
--- a/tools/migration/shell.camel-case.js
+++ b/tools/migration/shell.camel-case.js
@@ -187,3 +187,10 @@ db.signin.update({}, {
 		user_id: 'userId',
 	}
 }, false, true);
+
+db.sw_subscriptions.renameCollection('swSubscriptions');
+db.swSubscriptions.update({}, {
+	$rename: {
+		user_id: 'userId',
+	}
+}, false, true);