diff --git a/src/helpers/PostsHelper.ts b/src/helpers/PostsHelper.ts
index 19d0e5d..dacfef9 100644
--- a/src/helpers/PostsHelper.ts
+++ b/src/helpers/PostsHelper.ts
@@ -209,7 +209,7 @@ export class PostsHelper {
 		else if(post.kindPage == PostPageKind.PAGE_KIND_GROUP) {
 			// TODO : check this code
 			
-			const accessLevel = await GroupsHelper.GetMembershipLevel(userID, post.groupID);
+			const accessLevel = await GroupsHelper.GetMembershipLevel(post.groupID, userID);
 
 			// Moderator & admin = intermediate access
 			if(accessLevel < GroupMembershipLevels.MEMBER)