diff --git a/src/ttynvt.c b/src/ttynvt.c
index ef940a3..6d15cb1 100644
--- a/src/ttynvt.c
+++ b/src/ttynvt.c
@@ -926,6 +926,7 @@ ttynvt_ioctl(fuse_req_t req, int cmd, void *arg,
         case TCIFLUSH:
             byte = 1;
             tty->slave_suspended = 0;   /* Re-enable polling of Slave */
+            tty->pollin = 0;
             break;
         case TCOFLUSH:
             byte = 2;
@@ -935,6 +936,7 @@ ttynvt_ioctl(fuse_req_t req, int cmd, void *arg,
             byte = 3;
             tty->slave_suspended = 0;   /* Re-enable polling of Slave */
             tty->pollout = 1;
+            tty->pollin = 0;
             break;
         }
         telnet_rfc2217_cfg(tty->tn, TNS_SET_PURGE, &byte, 1);