diff --git a/app/lib/methods/getSingleMessage.js b/app/lib/methods/getSingleMessage.ts
similarity index 86%
rename from app/lib/methods/getSingleMessage.js
rename to app/lib/methods/getSingleMessage.ts
index 4c9b32a68..4d395a0db 100644
--- a/app/lib/methods/getSingleMessage.js
+++ b/app/lib/methods/getSingleMessage.ts
@@ -1,6 +1,6 @@
 import RocketChat from '../rocketchat';
 
-const getSingleMessage = messageId =>
+const getSingleMessage = (messageId: string) =>
 	new Promise(async (resolve, reject) => {
 		try {
 			const result = await RocketChat.getSingleMessage(messageId);