diff --git a/man/sd_bus_list_names.xml b/man/sd_bus_list_names.xml
index a370c6e770..884216bb54 100644
--- a/man/sd_bus_list_names.xml
+++ b/man/sd_bus_list_names.xml
@@ -42,7 +42,7 @@
     If <parameter>acquired</parameter> is not <constant>NULL</constant>, this function calls
     <ulink url="https://dbus.freedesktop.org/doc/dbus-specification.html#bus-messages-list-names">
     org.freedesktop.DBus.ListNames</ulink> to retrieve the list of currently-owned names on the bus. If
-    <parameter>acquired</parameter> is not <constant>NULL</constant>, the function calls
+    <parameter>activatable</parameter> is not <constant>NULL</constant>, the function calls
     <ulink url="https://dbus.freedesktop.org/doc/dbus-specification.html#bus-messages-list-activatable-names">
     org.freedesktop.DBus.ListActivatableNames</ulink> to retrieve the list of all names on the bus that can
     be activated. Note that ownership of the arrays returned by <function>sd_bus_list_names()</function> in