diff --git a/src/Socket/groups.ts b/src/Socket/groups.ts
index 2c576f4..999e98c 100644
--- a/src/Socket/groups.ts
+++ b/src/Socket/groups.ts
@@ -339,7 +339,7 @@ export const extractGroupMetadata = (result: BinaryNode) => {
 	const memberAddMode = getBinaryNodeChildString(group, 'member_add_mode') === 'all_member_add'
 	const metadata: GroupMetadata = {
 		id: groupId,
-		addressingMode: group.attrs.addressing_mode,
+		addressingMode: group.attrs.addressing_mode as "pn" | "lid",
 		subject: group.attrs.subject,
 		subjectOwner: group.attrs.s_o,
 		subjectTime: +group.attrs.s_t,
diff --git a/src/Types/GroupMetadata.ts b/src/Types/GroupMetadata.ts
index 5a1ae86..8f3da98 100644
--- a/src/Types/GroupMetadata.ts
+++ b/src/Types/GroupMetadata.ts
@@ -11,7 +11,7 @@ export type RequestJoinMethod = 'invite_link' | 'linked_group_join' | 'non_admin
 export interface GroupMetadata {
     id: string
     /** group uses 'lid' or 'pn' to send messages */
-    addressingMode: string
+    addressingMode: "pn" | "lid"
     owner: string | undefined
     subject: string
     /** group subject owner */