diff --git a/runtime/reflection.cc b/runtime/reflection.cc
index ee2e2c5..100d199 100644
--- a/runtime/reflection.cc
+++ b/runtime/reflection.cc
@@ -780,7 +780,7 @@
   mirror::Class* klass = o->GetClass();
   mirror::Class* src_class = nullptr;
   ClassLinker* const class_linker = Runtime::Current()->GetClassLinker();
-  ArtField* primitive_field = &klass->GetIFields()[0];
+  ArtField* primitive_field = &klass->GetIFieldsPtr()->At(0);
   if (klass->DescriptorEquals("Ljava/lang/Boolean;")) {
     src_class = class_linker->FindPrimitiveClass('Z');
     boxed_value.SetZ(primitive_field->GetBoolean(o));