diff --git a/rktwebview_test.cpp b/rktwebview_test.cpp
index 36c3024..1aa1199 100644
--- a/rktwebview_test.cpp
+++ b/rktwebview_test.cpp
@@ -8,6 +8,11 @@
 #endif
 #include "utils.h"
 
+void evt_cb(int n)
+{
+    fprintf(stderr, "events waiting: %d\n", n);
+}
+
 int main(int argc, char *argv[])
 {
     std::string me = argv[0];
@@ -31,6 +36,7 @@ int main(int argc, char *argv[])
 #endif
 
     int context = rkt_webview_new_context("", nullptr);
+    rkt_webview_register_evt_callback(evt_cb);
 
     int wv = rkt_webview_create(context, 0);
     rkt_webview_set_title(wv, "Hi there, this is a title!");