diff --git a/ring-jetty-adapter/src/ring/adapter/jetty.clj b/ring-jetty-adapter/src/ring/adapter/jetty.clj
index 39dfa125..5e66bbd6 100644
--- a/ring-jetty-adapter/src/ring/adapter/jetty.clj
+++ b/ring-jetty-adapter/src/ring/adapter/jetty.clj
@@ -17,7 +17,6 @@
       (let [request-map  (servlet/build-request-map request)
             response-map (handler request-map)]
         (when response-map
-          (.setCharacterEncoding response "UTF-8")
           (servlet/update-servlet-response response response-map)
           (.setHandled base-request true))))))
 
diff --git a/ring-jetty-adapter/test/ring/adapter/test/jetty.clj b/ring-jetty-adapter/test/ring/adapter/test/jetty.clj
index 69248e59..01d7d8f0 100644
--- a/ring-jetty-adapter/test/ring/adapter/test/jetty.clj
+++ b/ring-jetty-adapter/test/ring/adapter/test/jetty.clj
@@ -59,8 +59,9 @@
   (testing "default character encoding"
     (with-server (content-type-handler "text/plain") {:port 4347}
       (let [response (http/get "http://localhost:4347")]
-        (is (= (get-in response [:headers "content-type"])
-               "text/plain;charset=UTF-8")))))
+        (is (.contains
+             (get-in response [:headers "content-type"])
+             "text/plain")))))
 
   (testing "custom content-type"
     (with-server (content-type-handler "text/plain;charset=UTF-16;version=1") {:port 4347}
diff --git a/ring-servlet/src/ring/util/servlet.clj b/ring-servlet/src/ring/util/servlet.clj
index 3deeb020..ff8a0505 100644
--- a/ring-servlet/src/ring/util/servlet.clj
+++ b/ring-servlet/src/ring/util/servlet.clj
@@ -120,7 +120,6 @@
   (fn [^HttpServlet servlet
        ^HttpServletRequest request
        ^HttpServletResponse response]
-    (.setCharacterEncoding response "UTF-8")
     (let [request-map (-> request
                         (build-request-map)
                         (merge-servlet-keys servlet request response))]