diff --git a/index.html b/index.html
index 50090d5..dae79d7 100644
--- a/index.html
+++ b/index.html
@@ -139,7 +139,7 @@
 <script src="js/lex.js"></script>
 <script src="js/matrix.js"></script>
 <script src="js/gfx.js"></script>
-<script src="js/tool.js"></script>
+<script src="js/ui/tool.js"></script>
 <script src="js/draw.js"></script>
 
 <script src="js/ui/brush.js"></script>
diff --git a/js/tool.js b/js/ui/tool.js
similarity index 100%
rename from js/tool.js
rename to js/ui/tool.js