diff --git a/server/server.js b/server/server.js
index 8195acac7..b720f0951 100644
--- a/server/server.js
+++ b/server/server.js
@@ -113,7 +113,10 @@ app.use((req, res, next) => {
         );
         const finalState = store.getState();
 
-        res.status(200).end(renderFullPage(initialView, finalState));
+        res
+          .set('Content-Type', 'text/html')
+          .status(200)
+          .end(renderFullPage(initialView, finalState));
       })
       .catch((error) => next(error));
   });