diff --git a/lib/response.js b/lib/response.js
index 0e77207..5046395 100644
--- a/lib/response.js
+++ b/lib/response.js
@@ -305,7 +305,7 @@ module.exports = {
    */
 
   set type(type) {
-    type = getType(type) || false;
+    type = getType(type);
     if (type) {
       this.set('Content-Type', type);
     } else {