diff --git a/oio-unix.c b/oio-unix.c
index 28696851..20939a1b 100644
--- a/oio-unix.c
+++ b/oio-unix.c
@@ -473,8 +473,9 @@ void oio_tcp_connect(oio_handle* handle) {
   } else {
     oio_err err = oio_err_new(handle, error);
 
-    if (req->connect_cb) {
-      req->connect_cb(req, err);
+    oio_connect_cb connect_cb = req->cb;
+    if (connect_cb) {
+      connect_cb(req, err);
     }
 
     handle->err = err;
diff --git a/oio-unix.h b/oio-unix.h
index a41bc946..e556113c 100644
--- a/oio-unix.h
+++ b/oio-unix.h
@@ -40,7 +40,6 @@ typedef struct {
 
 
 #define oio_req_private_fields \
-  oio_connect_cb connect_cb; \
   ngx_queue_t read_reqs; \
   oio_buf* read_bufs; \
   ev_timer timer; \
diff --git a/test/test-list.h b/test/test-list.h
index 5eda4421..f38bbabc 100644
--- a/test/test-list.h
+++ b/test/test-list.h
@@ -25,6 +25,7 @@ TEST_DECLARE (close_cb_stack)
 TEST_DECLARE (timeout)
 TEST_DECLARE (fail_always)
 TEST_DECLARE (pass_always)
+TEST_DECLARE (test_connection_fail)
 
 TASK_LIST_START
 
@@ -38,4 +39,5 @@ TASK_LIST_START
   TEST_ENTRY  (fail_always)
 
   TEST_ENTRY  (pass_always)
+  TEST_ENTRY  (test_connection_fail)
 TASK_LIST_END