diff --git a/qtest.c b/qtest.c
index 9a5d1dc..88a09e9 100644
--- a/qtest.c
+++ b/qtest.c
@@ -691,7 +691,7 @@
 
     qemu_chr_fe_init(&qtest_chr, chr, errp);
     qemu_chr_fe_set_handlers(&qtest_chr, qtest_can_read, qtest_read,
-                             qtest_event, &qtest_chr, NULL, true);
+                             qtest_event, NULL, &qtest_chr, NULL, true);
     qemu_chr_fe_set_echo(&qtest_chr, true);
 
     inbuf = g_string_new("");