diff --git a/doc/Changelog b/doc/Changelog
index 4371e3044..cdd74bd41 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -6,6 +6,7 @@
 	- Fix for #882: small changes, date updated in Copyright for
 	  util/timeval_func.c and util/timeval_func.h. Man page entries and
 	  example entry.
+	- Fix for #882: document variable to stop doxygen warning.
 
 19 April 2023: Wouter
 	- Fix for #878: Invalid IP address in unbound.conf causes Segmentation
diff --git a/services/listen_dnsport.c b/services/listen_dnsport.c
index 2163a949d..9389b352a 100644
--- a/services/listen_dnsport.c
+++ b/services/listen_dnsport.c
@@ -1234,6 +1234,9 @@ if_is_ssl(const char* ifname, const char* port, int ssl_port,
  * @param use_systemd: if true, fetch sockets from systemd.
  * @param dnscrypt_port: dnscrypt service port number
  * @param dscp: DSCP to use.
+ * @param sock_queue_timeout: the sock_queue_timeout from config. Seconds to
+ * 	wait to discard if UDP packets have waited for long in the socket
+ * 	buffer.
  * @return: returns false on error.
  */
 static int