1 files changed, 4 insertions, 4 deletions
diff --git a/cli/rt/40_tty.js b/cli/rt/40_tty.js
index 3bab4f321..b50b7668c 100644
--- a/cli/rt/40_tty.js
+++ b/cli/rt/40_tty.js
@@ -1,18 +1,18 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 
 ((window) => {
-  const { sendSync } = window.__bootstrap.dispatchJson;
+  const core = window.Deno.core;
 
   function consoleSize(rid) {
-    return sendSync("op_console_size", { rid });
+    return core.jsonOpSync("op_console_size", { rid });
   }
 
   function isatty(rid) {
-    return sendSync("op_isatty", { rid });
+    return core.jsonOpSync("op_isatty", { rid });
   }
 
   function setRaw(rid, mode) {
-    sendSync("op_set_raw", { rid, mode });
+    core.jsonOpSync("op_set_raw", { rid, mode });
   }
 
   window.__bootstrap.tty = {