diff --git a/app/definitions/IMention.ts b/app/definitions/IMention.ts
new file mode 100644
index 000000000..81305e7e2
--- /dev/null
+++ b/app/definitions/IMention.ts
@@ -0,0 +1,6 @@
+export interface IMention {
+	_id: string;
+	name: string;
+	username: string;
+	type: string;
+}
diff --git a/app/definitions/IReaction.ts b/app/definitions/IReaction.ts
new file mode 100644
index 000000000..a28f5d06e
--- /dev/null
+++ b/app/definitions/IReaction.ts
@@ -0,0 +1,5 @@
+export interface IReaction {
+	_id: string;
+	emoji: string;
+	usernames: string[];
+}
diff --git a/app/definitions/IThread.ts b/app/definitions/IThread.ts
new file mode 100644
index 000000000..9ff19de07
--- /dev/null
+++ b/app/definitions/IThread.ts
@@ -0,0 +1,45 @@
+import Model from '@nozbe/watermelondb/Model';
+
+import { IAttachment } from './IAttachment';
+import { IMention } from './IMention';
+import { IReaction } from './IReaction';
+import { RoomType } from './IRoom';
+import { IUrl } from './IUrl';
+
+export interface IThread {
+	id: string;
+	msg: string;
+	t: RoomType;
+	rid: string;
+	_updated_at: Date;
+	ts: Date;
+	u: { _id: string; username: string; name: string };
+	alias: any;
+	parse_urls: any;
+	groupable: boolean;
+	avatar: string;
+	emoji: any;
+	attachments: IAttachment[];
+	urls: IUrl[];
+	status: number;
+	pinned: null;
+	starred: null;
+	edited_by: { username: string };
+	reactions: IReaction[];
+	role: null;
+	drid: null;
+	dcount: null;
+	dlm: null;
+	tmid: string;
+	tcount: 2;
+	tlm: Date;
+	replies: string[];
+	mentions: IMention[];
+	channels: [];
+	unread: boolean;
+	auto_translate: boolean;
+	translations: any;
+	e2e: any;
+}
+
+export type TThreadModel = IThread & Model;
diff --git a/app/definitions/IUrl.ts b/app/definitions/IUrl.ts
new file mode 100644
index 000000000..9b72fda26
--- /dev/null
+++ b/app/definitions/IUrl.ts
@@ -0,0 +1,6 @@
+export interface IUrl {
+	title: string;
+	description: string;
+	image: string;
+	url: string;
+}
diff --git a/app/views/RoomView/List/index.tsx b/app/views/RoomView/List/index.tsx
index 698b8d539..687289dfe 100644
--- a/app/views/RoomView/List/index.tsx
+++ b/app/views/RoomView/List/index.tsx
@@ -21,6 +21,7 @@ import List from './List';
 import NavBottomFAB from './NavBottomFAB';
 import { ChatsStackParamList } from '../../../stacks/types';
 import { IRoomItem } from '../index';
+import { IThread } from '../../../definitions/IThread';
 
 const QUERY_SIZE = 50;
 
@@ -61,7 +62,7 @@ class ListContainer extends React.Component<IRoomListContainerProps, any> {
 	private unsubscribeFocus: any;
 	private viewabilityConfig: { itemVisiblePercentThreshold: number };
 	private highlightedMessageTimeout: any;
-	private thread: any;
+	private thread?: IThread;
 	private messagesObservable?: Observable<Model>;
 	private messagesSubscription?: Subscription;
 	private viewableItems: any;