diff --git a/index.html b/index.html
index 2578701..bf1f7ac 100644
--- a/index.html
+++ b/index.html
@@ -5,6 +5,7 @@
       Author:  Franklin (https://fvdm.com)
       Source:  https://github.com/fvdm/speedtest
     -->
+    <meta charset="UTF-8">
     <title>Speedtest</title>
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <style>