1 files changed, 5 insertions, 0 deletions
diff --git a/cli/rt/11_timers.js b/cli/rt/11_timers.js
index 8f6a7e049..c762c59d8 100644
--- a/cli/rt/11_timers.js
+++ b/cli/rt/11_timers.js
@@ -20,6 +20,10 @@
     return core.jsonOpSync("op_now");
   }
 
+  function sleepSync(millis = 0) {
+    return core.jsonOpSync("op_sleep_sync", { millis });
+  }
+
   // Derived from https://github.com/vadimg/js_bintrees. MIT Licensed.
 
   class RBNode {
@@ -545,5 +549,6 @@
     opStopGlobalTimer,
     opStartGlobalTimer,
     opNow,
+    sleepSync,
   };
 })(this);