diff --git a/docs/source/simulation_components/system/ntp_client_server.rst b/docs/source/simulation_components/system/ntp_client_server.rst
index 671126fb..2d49f34e 100644
--- a/docs/source/simulation_components/system/ntp_client_server.rst
+++ b/docs/source/simulation_components/system/ntp_client_server.rst
@@ -44,7 +44,7 @@ Usage
 ^^^^^
 
 - Install on a Node via the ``SoftwareManager`` to start the database service.
-- Service runs on TCP port 123 by default.
+- Service runs on UDP port 123 by default.
 
 Implementation
 ^^^^^^^^^^^^^^