diff --git a/src/http.rs b/src/http.rs
index 9c54076..59e3cdd 100644
--- a/src/http.rs
+++ b/src/http.rs
@@ -52,6 +52,7 @@ fn index(req: &Request
) -> Result, hyper::http::Error> {
if accepts_gzip {
response
.header(CONTENT_ENCODING, "gzip")
+ .header(CONTENT_TYPE, "text/html")
.body(Body::from(COMPRESSED_HTML))
} else {
let (mut sender, body) = Body::channel();