diff --git a/docs/source/simulation_components/system/ntp_client_server.rst b/docs/source/simulation_components/system/ntp_client_server.rst
index 2d49f34e..b6d57c13 100644
--- a/docs/source/simulation_components/system/ntp_client_server.rst
+++ b/docs/source/simulation_components/system/ntp_client_server.rst
@@ -22,7 +22,7 @@ Key capabilities
 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
 ^^^^^^^^^^^^^^