diff --git a/packages/html-reporter/src/templates/index.html b/packages/html-reporter/src/templates/index.html
index e977dcb2f8..8a929648fb 100644
--- a/packages/html-reporter/src/templates/index.html
+++ b/packages/html-reporter/src/templates/index.html
@@ -2,6 +2,7 @@
 <html>
 
 <head>
+    <meta charset="utf-8">
     <script src="mutation-test-elements.js"></script>
 </head>
 
@@ -15,4 +16,4 @@
     <script src="bind-mutation-test-report.js"></script>
 </body>
 
-</html>
\ No newline at end of file
+</html>
