diff --git a/platform/chromium/is-webrtc-supported.html b/platform/chromium/is-webrtc-supported.html
index 15c155583..d30b674b1 100644
--- a/platform/chromium/is-webrtc-supported.html
+++ b/platform/chromium/is-webrtc-supported.html
@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
+<meta charset="utf-8">
 <title></title>
 <script async src="js/is-webrtc-supported.js"></script>
 </head>
diff --git a/platform/chromium/options_ui.html b/platform/chromium/options_ui.html
index d94c001ef..d9e1df5b9 100644
--- a/platform/chromium/options_ui.html
+++ b/platform/chromium/options_ui.html
@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
+<meta charset="utf-8">
 <script src="js/vapi-client.js"></script>
 <script src="js/options_ui.js"></script>
 <title></title>
