diff --git a/exec/nntpservice.js b/exec/nntpservice.js
index feb5f8f0637839987009d23b64244c13104fc4a8..9b496f54178fc6ece166b7ef3f8d81b4edf5d08c 100644
--- a/exec/nntpservice.js
+++ b/exec/nntpservice.js
@@ -394,6 +394,8 @@ while(client.socket.is_connected && !quit) {
 						field=hdr.ftn_reply;
 						break;
 				}
+				if(field==undefined)
+					field="";
 
 				writeln(format("%u %s",i,field.toString()));
 			}