<citerefentry><refentrytitle>sd_bus_emit_interfaces_removed</refentrytitle><manvolnum>3</manvolnum></citerefentry>
whenever interfaces are added or removed from the sub-tree, respectively.</para>
- <para>When <function>sd_bus_add_object_manager</function> succeeds, a slot is created
+ <para>When <function>sd_bus_add_object_manager()</function> succeeds, a slot is created
internally. If the output parameter <replaceable>slot</replaceable> is <constant>NULL</constant>,
a "floating" slot object is created, see
<citerefentry><refentrytitle>sd_bus_slot_set_floating</refentrytitle><manvolnum>3</manvolnum></citerefentry>.