diff --git a/doc/manual/default_network_ports.rst b/doc/manual/default_network_ports.rst
index 24a089514..1786dd7ab 100644
--- a/doc/manual/default_network_ports.rst
+++ b/doc/manual/default_network_ports.rst
@@ -31,5 +31,5 @@ Default network ports
 | Thorlabs T-Cube          | 3255         |
 +--------------------------+--------------+
 | Korad KA3005P            | 3256         |
--------------------------------------------
++--------------------------+--------------+