diff --git a/src/Socket/groups.ts b/src/Socket/groups.ts
index 8866bea..030e70d 100644
--- a/src/Socket/groups.ts
+++ b/src/Socket/groups.ts
@@ -330,7 +330,7 @@ export const extractGroupMetadata = (result: BinaryNode) => {
 		subject: group.attrs.subject,
 		subjectOwner: group.attrs.s_o,
 		subjectTime: +group.attrs.s_t,
-		size: +group.attrs.size,
+		size: getBinaryNodeChildren(group, 'participant').length,
 		creation: +group.attrs.creation,
 		owner: group.attrs.creator ? jidNormalizedUser(group.attrs.creator) : undefined,
 		desc,