diff --git a/chardev/char-pty.c b/chardev/char-pty.c
index b066f01412..652b0bd9e7 100644
--- a/chardev/char-pty.c
+++ b/chardev/char-pty.c
@@ -125,7 +125,7 @@ static int char_pty_chr_write(Chardev *chr, const uint8_t *buf, int len)
     rc = RETRY_ON_EINTR(g_poll(&pfd, 1, 0));
     g_assert(rc >= 0);
     if (!(pfd.revents & G_IO_HUP) && (pfd.revents & G_IO_OUT)) {
-        io_channel_send(s->ioc, buf, len);
+        return io_channel_send(s->ioc, buf, len);
     }
 
     return len;