diff --git a/src/share/vm/oops/instanceKlass.hpp b/src/share/vm/oops/instanceKlass.hpp
index 9cbfa0fbfb6dc3ea2aa7fa2b3a10cb39bdc05f28..656e74226f29fe557187c8bb117bf225241cce86 100644
--- a/src/share/vm/oops/instanceKlass.hpp
+++ b/src/share/vm/oops/instanceKlass.hpp
@@ -337,7 +337,7 @@ class instanceKlass: public Klass {
   int java_fields_count() const           { return (int)_java_fields_count; }
 
   // Number of fields including any injected fields
-  int all_fields_count() const            { return _fields->length() / sizeof(FieldInfo::field_slots); }
+  int all_fields_count() const            { return _fields->length() / FieldInfo::field_slots; }
 
   typeArrayOop fields() const              { return _fields; }