diff --git a/src/Socket/messages-send.ts b/src/Socket/messages-send.ts
index 673ea24..952c5df 100644
--- a/src/Socket/messages-send.ts
+++ b/src/Socket/messages-send.ts
@@ -522,7 +522,7 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 				const stanza: BinaryNode = {
 					tag: 'message',
 					attrs: {
-						id: msgId!,
+						id: msgId,
 						type: getMessageType(message),
 						...(additionalAttributes || {})
 					},
diff --git a/src/Socket/socket.ts b/src/Socket/socket.ts
index f6fdb95..63abd88 100644
--- a/src/Socket/socket.ts
+++ b/src/Socket/socket.ts
@@ -65,7 +65,7 @@ export const makeSocket = (config: SocketConfig) => {
 	} = config
 
 	if(printQRInTerminal) {
-    console.warn('⚠️ The printQRInTerminal option has been deprecated. You will no longer receive QR codes in the terminal automatically. Please listen to the connection.update event yourself and handle the QR your way. You can remove this message by removing this opttion. This message will be removed in a future version.')
+		console.warn('⚠️ The printQRInTerminal option has been deprecated. You will no longer receive QR codes in the terminal automatically. Please listen to the connection.update event yourself and handle the QR your way. You can remove this message by removing this opttion. This message will be removed in a future version.')
 	}
 
 	const url = typeof waWebSocketUrl === 'string' ? new URL(waWebSocketUrl) : waWebSocketUrl
diff --git a/src/WABinary/generic-utils.ts b/src/WABinary/generic-utils.ts
index 48b323c..f519e68 100644
--- a/src/WABinary/generic-utils.ts
+++ b/src/WABinary/generic-utils.ts
@@ -6,7 +6,7 @@ import { BinaryNode } from './types'
 
 export const getBinaryNodeChildren = (node: BinaryNode | undefined, childTag: string) => {
 	if(Array.isArray(node?.content)) {
-		return node!.content.filter(item => item.tag === childTag)
+		return node.content.filter(item => item.tag === childTag)
 	}
 
 	return []
diff --git a/src/WAUSync/Protocols/USyncDeviceProtocol.ts b/src/WAUSync/Protocols/USyncDeviceProtocol.ts
index f03a0c0..d5bef2f 100644
--- a/src/WAUSync/Protocols/USyncDeviceProtocol.ts
+++ b/src/WAUSync/Protocols/USyncDeviceProtocol.ts
@@ -48,7 +48,7 @@ export class USyncDeviceProtocol implements USyncQueryProtocol {
 			const keyIndexNode = getBinaryNodeChild(node, 'key-index-list')
 
 			if(Array.isArray(deviceListNode?.content)) {
-				for(const { tag, attrs } of deviceListNode!.content) {
+				for(const { tag, attrs } of deviceListNode.content) {
 					const id = +attrs.id
 					const keyIndex = +attrs['key-index']
 					if(tag === 'device') {