diff --git a/host/simtrace2_usb.c b/host/simtrace2_usb.c
index cdfe29e2..1e3104ad 100644
--- a/host/simtrace2_usb.c
+++ b/host/simtrace2_usb.c
@@ -85,4 +85,5 @@ int main(int argc, char **argv)
 {
 	libusb_init(NULL);
 	find_devices();
+	return 0;
 }