diff --git a/src/node_contextify.cc b/src/node_contextify.cc
index 482c9a7b51dbf0..55a367aa2ea886 100644
--- a/src/node_contextify.cc
+++ b/src/node_contextify.cc
@@ -459,6 +459,7 @@ void ContextifyContext::PropertySetterCallback(
   }
 
   USE(ctx->sandbox()->Set(context, property, value));
+  args.GetReturnValue().Set(true);
 }
 
 // static