diff --git a/src/unix/tty.c b/src/unix/tty.c
index b1782df9..9038d85a 100644
--- a/src/unix/tty.c
+++ b/src/unix/tty.c
@@ -237,8 +237,10 @@ uv_handle_type uv_guess_handle(uv_file file) {
  * critical section when the signal was raised.
  */
 int uv_tty_reset_mode(void) {
+  int saved_errno;
   int err;
 
+  saved_errno = errno;
   if (!uv_spinlock_trylock(&termios_spinlock))
     return -EBUSY;  /* In uv_tty_set_mode(). */
 
@@ -248,5 +250,7 @@ int uv_tty_reset_mode(void) {
       err = -errno;
 
   uv_spinlock_unlock(&termios_spinlock);
+  errno = saved_errno;
+
   return err;
 }
diff --git a/test/test-tty.c b/test/test-tty.c
index cfcb7702..cb742fe1 100644
--- a/test/test-tty.c
+++ b/test/test-tty.c
@@ -118,6 +118,13 @@ TEST_IMPL(tty) {
   r = uv_tty_set_mode(&tty_in, UV_TTY_MODE_NORMAL);
   ASSERT(r == 0);
 
+  /* Calling uv_tty_reset_mode() repeatedly should not clobber errno. */
+  errno = 0;
+  ASSERT(0 == uv_tty_reset_mode());
+  ASSERT(0 == uv_tty_reset_mode());
+  ASSERT(0 == uv_tty_reset_mode());
+  ASSERT(0 == errno);
+
   /* TODO check the actual mode! */
 
   uv_close((uv_handle_t*) &tty_in, NULL);