diff --git a/src/microhttpd/test_shutdown_select.c b/src/microhttpd/test_shutdown_select.c
index 8d779dbd..15434676 100644
--- a/src/microhttpd/test_shutdown_select.c
+++ b/src/microhttpd/test_shutdown_select.c
@@ -372,7 +372,11 @@ main (int argc, char *const *argv)
           return 99;
         }
       if (end_t - start_t > 3)
+      {
+        fprintf (stderr, "Test failed, time spent: %ld second\n",
+                 end_t - start_t);
         result++;
+      }
     }
 
 #ifdef MHD_WINSOCK_SOCKETS