diff --git a/src/Http/Routing/Router.php b/src/Http/Routing/Router.php
index 4560309..d1754b8 100644
--- a/src/Http/Routing/Router.php
+++ b/src/Http/Routing/Router.php
@@ -58,10 +58,12 @@ public function dispatch(ServerRequestInterface $request): ResponseInterface
 
         foreach ($routes as $route) {
             if ($route->matches($path)) {
-                return $route->execute($this->app, $request, $this->responseFactory->createResponse(200));
+                return $route->execute($this->app, $request, $this->responseFactory->createResponse(200)
+                    ->withHeader('Content-Type', 'text/html')
+                );
             }
         }
 
         return $this->responseFactory->createResponse(404);
     }
-}
\ No newline at end of file
+}