diff --git a/test/regress.c b/test/regress.c
index d200ae35..7d785904 100644
--- a/test/regress.c
+++ b/test/regress.c
@@ -832,7 +832,7 @@ static void
 test_fork(void)
 {
 	int status;
-	struct event ev, sig_ev;
+	struct event ev, sig_ev, usr_ev;
 	pid_t pid;
 
 	setup_test("After fork: ");
@@ -867,6 +867,10 @@ test_fork(void)
 
 		evsignal_del(&sig_ev);
 
+		evsignal_set(&usr_ev, SIGUSR1, fork_signal_cb, &usr_ev);
+		evsignal_add(&usr_ev, NULL);
+		raise(SIGUSR1);
+
 		called = 0;
 
 		event_dispatch();
@@ -908,6 +912,10 @@ test_fork(void)
 
 	shutdown(pair[0], SHUT_WR);
 
+	evsignal_set(&usr_ev, SIGUSR1, fork_signal_cb, &usr_ev);
+	evsignal_add(&usr_ev, NULL);
+	raise(SIGUSR1);
+
 	event_dispatch();
 
 	evsignal_del(&sig_ev);