diff --git a/extensions/extb_oper.c b/extensions/extb_oper.c
index e34d0221..ff859aa4 100644
--- a/extensions/extb_oper.c
+++ b/extensions/extb_oper.c
@@ -35,8 +35,10 @@ static int eb_oper(const char *data, struct Client *client_p,
 {
 
 	(void)chptr;
-	(void)data;
 	(void)mode_type;
 	/* perhaps use data somehow? (opernick/flags?) */
+	/* so deny any bans with data for now */
+	if (data != NULL)
+		return EXTBAN_INVALID;
 	return IsOper(client_p) ? EXTBAN_MATCH : EXTBAN_NOMATCH;
 }