diff --git a/Using-Havok-reflection-data-and-public-information.md b/Using-Havok-reflection-data-and-public-information.md
index 3a85bfa..15e8efe 100644
--- a/Using-Havok-reflection-data-and-public-information.md
+++ b/Using-Havok-reflection-data-and-public-information.md
@@ -22,7 +22,7 @@ Havok class constructors and/or their vtables are sometimes referenced from a gi
 
 Havok is out of the scope of this decompilation project, but obviously BotW code that uses inlined Havok utilities and interacts with Havok functions still needs to be decompiled.
 
-Using the headers is permitted, but you should not copy entire files or chunks of code from the headers when implementing stubs. To repeat:
+Referencing the headers is permitted, but you should not copy entire files or chunks of code (non-trivial implementation code -- porting class/method/enum/... declarations is okay) from the headers when implementing stubs. To repeat:
 
 **DO NOT COPY ENTIRE FILES FROM THE PUBLIC HEADERS EVEN THOUGH THEY ARE FREELY AND PUBLICLY AVAILABLE.**