diff --git a/exec/nntpservice.js b/exec/nntpservice.js
index 54364dc66e7033fef01e81629109b29ce81b514c..997f902359487b2bc4ffa02944c946a87c4bab8a 100644
--- a/exec/nntpservice.js
+++ b/exec/nntpservice.js
@@ -267,7 +267,7 @@ while(client.socket.is_connected && !quit) {
 	}
 
 	if(!logged_in) {
-		writeln("502 Authentication required");
+		writeln("480 Authentication required");
 		log(LOG_WARNING,"!Authentication required");
 		continue;
 	}