diff --git a/doc/Changelog b/doc/Changelog
index d9922b351..555725b5d 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,3 +1,7 @@
+4 August 2016: Wouter
+	- Fix #807: workaround for possible some "unused" function parameters
+	  in test code, from Jinmei Tatuya.
+
 3 August 2016: Wouter
 	- use sendmsg instead of sendto for TFO.
 
diff --git a/testcode/fake_event.c b/testcode/fake_event.c
index 1578b7ddc..7e0d075cd 100644
--- a/testcode/fake_event.c
+++ b/testcode/fake_event.c
@@ -1130,6 +1130,7 @@ void outnet_serviced_query_stop(struct serviced_query* sq, void* cb_arg)
 	while(p) {
 		if(p == pend) {
 			log_assert(p->cb_arg == cb_arg);
+			(void)cb_arg;
 			log_info("serviced pending delete");
 			if(prev)
 				prev->next = p->next;