diff --git a/test/test_stepping.c b/test/test_stepping.c
index 60ffb4c..3c148df 100644
--- a/test/test_stepping.c
+++ b/test/test_stepping.c
@@ -4,6 +4,8 @@
 
 #include "bus.h"
 #include "rk65c02.h"
+#include "log.h"
+
 #include "utils.h"
 
 ATF_TC_WITHOUT_HEAD(step1);
@@ -12,6 +14,8 @@ ATF_TC_BODY(step1, tc)
 	rk65c02emu_t e;
 	bus_t b;
 
+	rk65c02_loglevel_set(LOG_TRACE);
+
 	b = bus_init_with_default_devs();
 	e = rk65c02_init(&b);