diff --git a/documentation/preface.html b/documentation/preface.html
index 22fa0a610..2809358f2 100644
--- a/documentation/preface.html
+++ b/documentation/preface.html
@@ -54,7 +54,7 @@ interfaces.</P>
 
 	<LI><A HREF="forms.html#forms">Appendix E - Forms Compatibility</A></LI>
 
-	<LI><A HREF="license.html#license">Appendix F - Operating System Issues</A></LI>
+	<LI><A HREF="osissues.html#osissues">Appendix F - Operating System Issues</A></LI>
 
 	<LI><A HREF="migration.html">Appendix G - Migrating from FLTK 1.0.x to FLTK 1.1.x</A></LI>