diff --git a/man/systemd.net-naming-scheme.xml b/man/systemd.net-naming-scheme.xml
index 905351005c..0dd8728c25 100644
--- a/man/systemd.net-naming-scheme.xml
+++ b/man/systemd.net-naming-scheme.xml
@@ -528,7 +528,7 @@
         <varlistentry>
           <term><constant>v257</constant></term>
 
-          <listitem><para>PCI slot number is now read from <constant>firmware_node/sun</constant> sysfs file</para>
+          <listitem><para>PCI slot number is now read from <constant>firmware_node/sun</constant> sysfs file.</para>
 
           <xi:include href="version-info.xml" xpointer="v257"/>
           </listitem>