diff --git a/signal.cpp b/signal.cpp
index 2c51e9d2f..bbe462fe7 100644
--- a/signal.cpp
+++ b/signal.cpp
@@ -633,6 +633,14 @@ void get_signals_with_handlers(sigset_t *set)
     sigemptyset(set);
 	for( int i=0; lookup[i].desc ; i++ )
 	{
+        /* Don't include SIGTTIN or SIGTTOU until we figure out how to set the controlling terminal in POSIX_SPAWN */
+#ifdef SIGTTIN
+        if (i == SIGTTIN) continue;
+#endif
+#ifdef SIGTTOU
+        if (i == SIGTTOU) continue;
+#endif
+
         struct sigaction act = {};
 		sigaction(lookup[i].signal, NULL, &act);
         if (act.sa_handler != SIG_DFL)