1 files changed, 6 insertions, 2 deletions
diff --git a/src/bun.js/scripts/generate-classes.ts b/src/bun.js/scripts/generate-classes.ts
index ddb01cccd..294e07494 100644
--- a/src/bun.js/scripts/generate-classes.ts
+++ b/src/bun.js/scripts/generate-classes.ts
@@ -555,7 +555,7 @@ JSC::EncodedJSValue JSC_HOST_CALL_ATTRIBUTES ${name}::construct(JSC::JSGlobalObj
     ${className(typeName)}* instance = ${className(typeName)}::create(vm, globalObject, structure, ptr);
   ${
     obj.estimatedSize
-      ? `vm.heap.reportExtraMemoryAllocated(${symbolName(obj.name, "estimatedSize")}(instance->wrapped()));`
+      ? `vm.heap.reportExtraMemoryAllocated(instance, ${symbolName(obj.name, "estimatedSize")}(instance->wrapped()));`
       : ""
   }
 
@@ -1208,7 +1208,11 @@ extern "C" EncodedJSValue ${typeName}__create(Zig::GlobalObject* globalObject, v
   auto &vm = globalObject->vm();
   JSC::Structure* structure = globalObject->${className(typeName)}Structure();
   ${className(typeName)}* instance = ${className(typeName)}::create(vm, globalObject, structure, ptr);
-  ${obj.estimatedSize ? `vm.heap.reportExtraMemoryAllocated(${symbolName(obj.name, "estimatedSize")}(ptr));` : ""}
+  ${
+    obj.estimatedSize
+      ? `vm.heap.reportExtraMemoryAllocated(instance, ${symbolName(obj.name, "estimatedSize")}(ptr));`
+      : ""
+  }
   return JSValue::encode(instance);
 }