diff --git a/docs/ports.md b/docs/ports.md
index 51c4b72b..91f5c727 100644
--- a/docs/ports.md
+++ b/docs/ports.md
@@ -25,6 +25,7 @@
 | Zcoin                | 9050                    | 9150                  | 8050             | 38350                       |
 | Koto                 | 9051                    | 9151                  | 8051             | 38351                       |
 | Bellcoin             | 9052                    | 9152                  | 8052             | 38352                       |
+| NULS                 | 9053                    | 9153                  | 8053             | 38353                       |
 | Flo                  | 9066                    | 9166                  | 8066             | 38366                       |
 | Qtum                 | 9088                    | 9188                  | 8088             | 38388                       |
 | Bitcoin Testnet      | 19030                   | 19130                 | 18030            | 48330                       |