diff --git a/README.md b/README.md
index 6e04591..cda1250 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ The benefits over openSCAD are mainly in the language itself: you can use dynami
 
 Contributions are welcome, fork me on GitHub!
 
-The only content here is the 'GUI' part, in the gh-pages branch at https://github.com/joostn/OpenJsCad/tree/gh-pages  
+The only content here is the 'GUI' part (i.e. index.html) in the gh-pages branch at https://github.com/joostn/OpenJsCad/tree/gh-pages  
 
 The actual CSG engine is in csg.js. Don't fork the copy of csg.js here, but instead create a fork of this branch:
 https://github.com/joostn/csg.js