diff --git a/test/mjsunit/fuzz-natives.js b/test/mjsunit/fuzz-natives.js
index fbebfb9..315270c 100644
--- a/test/mjsunit/fuzz-natives.js
+++ b/test/mjsunit/fuzz-natives.js
@@ -109,6 +109,7 @@
   
   // These functions should not be callable as runtime functions.
   "NewContext": true,
+  "NewArgumentsFast": true,
   "PushContext": true,
   "LazyCompile": true,
   "CreateObjectLiteralBoilerplate": true,