diff --git a/INSTALL b/INSTALL
index 2099840..c1722d1 100644
--- a/INSTALL
+++ b/INSTALL
@@ -252,6 +252,11 @@ not `/usr/local'.  It is recommended to use the following options:
 
      ./configure --prefix=/boot/common
 
+   On macOS, automake and autoconf are not part of the default OS. In
+order to overcome this, you should install them manually. For example:
+
+     brew install automake autoconf
+
 Specifying the System Type
 ==========================
 
diff --git a/src/tty.c b/src/tty.c
index 3713452..d5a6bd8 100644
--- a/src/tty.c
+++ b/src/tty.c
@@ -537,7 +537,11 @@ int tty_connect(void)
     int    status;
 
     /* Open tty device */
-    fd = open(option.tty_device, O_RDWR | O_NOCTTY );
+#ifdef __APPLE__
+    fd = open(option.tty_device, O_RDWR | O_NOCTTY | O_NONBLOCK );
+#else
+    fd = open(option.tty_device, O_RDWR | O_NOCTTY);
+#endif
     if (fd < 0)
     {
         error_printf_silent("Could not open tty device (%s)", strerror(errno));