diff --git a/fuzzing/EpollHelloWorld.cpp b/fuzzing/EpollHelloWorld.cpp
index e4c2b93..8ac4263 100644
--- a/fuzzing/EpollHelloWorld.cpp
+++ b/fuzzing/EpollHelloWorld.cpp
@@ -64,6 +64,10 @@ void test() {
         struct us_socket_context_t *client_context = us_create_socket_context(0, loop, 0, {});
         client = us_socket_context_connect(0, client_context, "hostname", 5000, "localhost", 0, 0);
 
+        us_socket_context_on_connect_error(0, client_context, [](struct us_socket_t *s, int code) {
+            return s;
+        });
+
         us_socket_context_on_open(0, client_context, [](struct us_socket_t *s, int is_client, char *ip, int ip_length) {
             us_socket_flush(0, s);
             return s;