diff --git a/nmap-service-probes b/nmap-service-probes
index 3bb12d427..56bdb3a4d 100644
--- a/nmap-service-probes
+++ b/nmap-service-probes
@@ -12265,7 +12265,8 @@ match xamarin m|^ERROR: Another instance is running\n| p/Xamarin MonoTouch/
 # in the match lines)
 Probe TCP TLSSessionReq q|\x16\x03\0\0\x69\x01\0\0\x65\x03\x03U\x1c\xa7\xe4random1random2random3random4\0\0\x0c\0/\0\x0a\0\x13\x009\0\x04\0\xff\x01\0\0\x30\0\x0d\0,\0*\0\x01\0\x03\0\x02\x06\x01\x06\x03\x06\x02\x02\x01\x02\x03\x02\x02\x03\x01\x03\x03\x03\x02\x04\x01\x04\x03\x04\x02\x01\x01\x01\x03\x01\x02\x05\x01\x05\x03\x05\x02|
 rarity 1
-ports 443,444,465,636,989,990,992,993,994,995,1241,1311,2252,3389,4433,4444,5061,6679,6697,8443,9001
+# port 3389 not listed because we can't figure out what to send to it after negotiating TLS
+ports 443,444,465,636,989,990,992,993,994,995,1241,1311,2252,4433,4444,5061,6679,6697,8443,9001
 fallback GetRequest
 
 # SSLv3 - TLSv1.2 ServerHello