diff --git a/cmd/cover/html.go b/cmd/cover/html.go
index d41685445b..d1c1747e6d 100644
--- a/cmd/cover/html.go
+++ b/cmd/cover/html.go
@@ -177,6 +177,7 @@ const tmplHTML = `
 <!DOCTYPE html>
 <html>
 	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 		<style>
 			body {
 				background: black;
