diff --git a/src/node_contextify.cc b/src/node_contextify.cc
index 4efb420fa128b7..7710c252b2c35b 100644
--- a/src/node_contextify.cc
+++ b/src/node_contextify.cc
@@ -148,7 +148,7 @@ class ContextifyContext {
             desc->set_enumerable(desc_vm_context
                 ->Get(context, env()->enumerable_string()).ToLocalChecked()
                 ->BooleanValue(context).FromJust());
-            sandbox_obj->DefineProperty(context, key, *desc);
+            CHECK(sandbox_obj->DefineProperty(context, key, *desc).FromJust());
         };
 
         if (is_accessor) {