diff --git a/tests/Tile/UTFGrid.html b/tests/Tile/UTFGrid.html
index c0caac304b..669289b79f 100644
--- a/tests/Tile/UTFGrid.html
+++ b/tests/Tile/UTFGrid.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
-  <meta http-equiv="content-type" content="text/html; charset=UTF-9">
+  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
   <script src="../OLLoader.js"></script>
   <script type="text/javascript">
 
